{"id":1238,"date":"2025-11-25T15:56:05","date_gmt":"2025-11-25T12:26:05","guid":{"rendered":"https:\/\/ilk.ir\/sahifa\/?p=1238"},"modified":"2025-11-25T20:00:13","modified_gmt":"2025-11-25T16:30:13","slug":"direct-digital-synthesizer-%db%8c%d8%a7-dds-%d8%b3%d9%86%d8%aa%d8%b2%da%a9%d9%86%d9%86%d8%af%d9%87-%d8%af%db%8c%d8%ac%db%8c%d8%aa%d8%a7%d9%84-%d9%85%d8%b3%d8%aa%d9%82%db%8c%d9%85","status":"publish","type":"post","link":"https:\/\/ilk.ir\/sahifa\/world\/%d8%a7%d9%84%da%a9%d8%aa%d8%b1%d9%88%d9%86%db%8c%da%a9\/direct-digital-synthesizer-%db%8c%d8%a7-dds-%d8%b3%d9%86%d8%aa%d8%b2%da%a9%d9%86%d9%86%d8%af%d9%87-%d8%af%db%8c%d8%ac%db%8c%d8%aa%d8%a7%d9%84-%d9%85%d8%b3%d8%aa%d9%82%db%8c%d9%85\/","title":{"rendered":"Direct Digital Synthesizer \u06cc\u0627 DDS (\u0633\u0646\u062a\u0632\u06a9\u0646\u0646\u062f\u0647 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645)"},"content":{"rendered":"\n<p><strong>Direct Digital Synthesizer<\/strong> \u06cc\u0627 <strong>DDS<\/strong> (\u0633\u0646\u062a\u0632\u06a9\u0646\u0646\u062f\u0647 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645)\u060c \u06cc\u06a9 \u0631\u0648\u0634 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0634\u06a9\u0644\u200c\u0645\u0648\u062c\u200c\u0647\u0627\u06cc \u0622\u0646\u0627\u0644\u0648\u06af (\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0633\u06cc\u0646\u0648\u0633\u06cc) \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0646\u0637\u0642 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0627\u0633\u062a.<\/p>\n\n\n\n<p>\u0628\u0647 \u0632\u0628\u0627\u0646 \u0633\u0627\u062f\u0647\u060c DDS \u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 &#8220;\u067e\u062e\u0634\u200c\u06a9\u0646\u0646\u062f\u0647 \u0645\u0648\u0633\u06cc\u0642\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0633\u0631\u06cc\u0639&#8221; \u0639\u0645\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0628\u0647 \u062c\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u06cc\u06a9 \u0622\u0647\u0646\u06af \u0637\u0648\u0644\u0627\u0646\u06cc\u060c \u06cc\u06a9 \u0642\u0637\u0639\u0647 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0648\u062a\u0627\u0647 \u0627\u0632 \u06cc\u06a9 \u0645\u0648\u062c \u0633\u06cc\u0646\u0648\u0633\u06cc \u0631\u0627 \u0628\u0627\u0631\u0647\u0627 \u0648 \u0628\u0627\u0631\u0647\u0627 \u0628\u0627 \u0633\u0631\u0639\u062a\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0645\u06cc\u200c\u062e\u0648\u0627\u0646\u062f \u062a\u0627 \u0641\u0631\u06a9\u0627\u0646\u0633\u200c\u0647\u0627\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062a\u0648\u0644\u06cc\u062f \u06a9\u0646\u062f.<\/p>\n\n\n\n<p>\u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u060c \u0633\u0627\u062e\u062a\u0627\u0631\u060c \u0646\u062d\u0648\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0631\u06cc\u0627\u0636\u06cc\u0627\u062a \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u06f1. \u0627\u062c\u0632\u0627\u06cc \u0627\u0635\u0644\u06cc \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 DDS<\/h3>\n\n\n\n<p>\u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 DDS \u0627\u0632 \u0686\u0647\u0627\u0631 \u0628\u062e\u0634 \u0627\u0635\u0644\u06cc \u062a\u0634\u06a9\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u062f\u0631\u06a9 \u0627\u06cc\u0646 \u0628\u0644\u0648\u06a9\u200c\u0647\u0627 \u06a9\u0644\u06cc\u062f \u0641\u0647\u0645 \u06a9\u0644 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0633\u062a:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u0645\u0646\u0628\u0639 \u06a9\u0644\u0627\u06a9 \u0645\u0631\u062c\u0639 (Reference Clock):<\/strong> \u0642\u0644\u0628 \u062a\u067e\u0646\u062f\u0647 \u0633\u06cc\u0633\u062a\u0645 \u06a9\u0647 \u06cc\u06a9 \u0641\u0631\u06a9\u0627\u0646\u0633 \u062b\u0627\u0628\u062a \u0648 \u067e\u0627\u06cc\u062f\u0627\u0631 ($f_{clk}$) \u0631\u0627 \u062a\u0627\u0645\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0627\u0646\u0628\u0627\u0634\u062a\u06af\u0631 \u0641\u0627\u0632 (Phase Accumulator):<\/strong> \u0627\u06cc\u0646 \u0628\u062e\u0634\u060c \u06cc\u06a9 \u0634\u0645\u0627\u0631\u0646\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0628\u0627 \u0647\u0631 \u06a9\u0644\u0627\u06a9\u060c \u0686\u0647 \u0645\u0642\u062f\u0627\u0631 \u0628\u0627\u06cc\u062f \u0631\u0648\u06cc \u0645\u0648\u062c &#8220;\u062c\u0644\u0648\u062a\u0631&#8221; \u0628\u0631\u0648\u06cc\u0645.<\/li>\n\n\n\n<li><strong>\u062a\u0628\u062f\u06cc\u0644\u200c\u06af\u0631 \u0641\u0627\u0632 \u0628\u0647 \u062f\u0627\u0645\u0646\u0647 (Phase-to-Amplitude Converter \/ LUT):<\/strong> \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u06cc\u06a9 \u062d\u0627\u0641\u0638\u0647 (ROM) \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u062c\u062f\u0648\u0644 \u062c\u0633\u062a\u062c\u0648 (Look-Up Table) \u0631\u0627 \u062f\u0631 \u062e\u0648\u062f \u062c\u0627\u06cc \u062f\u0627\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0628\u062e\u0634 \u0645\u0642\u062f\u0627\u0631 \u0641\u0627\u0632 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0631\u0627 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f \u0648 \u062f\u0627\u0645\u0646\u0647 \u0645\u062a\u0646\u0627\u0638\u0631 \u0628\u0627 \u0622\u0646 (\u0645\u062b\u0644\u0627\u064b \u0645\u0642\u062f\u0627\u0631 \u0633\u06cc\u0646\u0648\u0633 \u0622\u0646 \u0632\u0627\u0648\u06cc\u0647) \u0631\u0627 \u062e\u0631\u0648\u062c\u06cc \u0645\u06cc\u200c\u062f\u0647\u062f.<\/li>\n\n\n\n<li><strong>\u0645\u0628\u062f\u0644 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0628\u0647 \u0622\u0646\u0627\u0644\u0648\u06af (DAC):<\/strong> \u0627\u0639\u062f\u0627\u062f \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u062e\u0631\u0648\u062c\u06cc \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0631\u0627 \u0628\u0647 \u0648\u0644\u062a\u0627\u0698 \u0622\u0646\u0627\u0644\u0648\u06af \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u06f2. \u0646\u062d\u0648\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f (\u06af\u0627\u0645\u200c\u0628\u0647\u200c\u06af\u0627\u0645)<\/h3>\n\n\n\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u062a\u0635\u0648\u0631 \u06a9\u0646\u06cc\u0645 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u06cc\u06a9 \u0645\u0648\u062c \u0633\u06cc\u0646\u0648\u0633\u06cc \u062a\u0648\u0644\u06cc\u062f \u06a9\u0646\u06cc\u0645:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u062a\u0639\u06cc\u06cc\u0646 \u06af\u0627\u0645 (Tuning Word):<\/strong> \u0634\u0645\u0627 \u06cc\u06a9 \u0639\u062f\u062f \u0628\u0647 \u0646\u0627\u0645 $M$ (\u06a9\u0644\u0645\u0647 \u062a\u0646\u0638\u06cc\u0645 \u0641\u0631\u06a9\u0627\u0646\u0633) \u0631\u0627 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0645\u06cc\u200c\u062f\u0647\u06cc\u062f. \u0627\u06cc\u0646 \u0639\u062f\u062f \u0633\u0631\u0639\u062a \u0686\u0631\u062e\u0634 \u0641\u0627\u0632 \u0631\u0627 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u062c\u0645\u0639 \u06a9\u0631\u062f\u0646 \u0641\u0627\u0632:<\/strong> \u0628\u0627 \u0647\u0631 \u067e\u0627\u0644\u0633 \u0633\u0627\u0639\u062a ($Clock$)\u060c \u0627\u0646\u0628\u0627\u0634\u062a\u06af\u0631 \u0641\u0627\u0632 \u0645\u0642\u062f\u0627\u0631 \u0642\u0628\u0644\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 $M$ \u062c\u0645\u0639 \u0645\u06cc\u200c\u06a9\u0646\u062f.\n<ul class=\"wp-block-list\">\n<li>\u0627\u06af\u0631 $M$ \u06a9\u0648\u0686\u06a9 \u0628\u0627\u0634\u062f\u060c \u0634\u0645\u0627\u0631\u0646\u062f\u0647 \u0628\u0647 \u0622\u0631\u0627\u0645\u06cc \u0628\u0627\u0644\u0627 \u0645\u06cc\u200c\u0631\u0648\u062f (\u0641\u0631\u06a9\u0627\u0646\u0633 \u062e\u0631\u0648\u062c\u06cc \u067e\u0627\u06cc\u06cc\u0646).<\/li>\n\n\n\n<li>\u0627\u06af\u0631 $M$ \u0628\u0632\u0631\u06af \u0628\u0627\u0634\u062f\u060c \u0634\u0645\u0627\u0631\u0646\u062f\u0647 \u0633\u0631\u06cc\u0639 \u067e\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0633\u0631\u0631\u06cc\u0632 (Overflow) \u0645\u06cc\u200c\u06a9\u0646\u062f (\u0641\u0631\u06a9\u0627\u0646\u0633 \u062e\u0631\u0648\u062c\u06cc \u0628\u0627\u0644\u0627).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u0646\u06af\u0627\u0634\u062a \u0628\u0647 \u0633\u06cc\u0646\u0648\u0633:<\/strong> \u062e\u0631\u0648\u062c\u06cc \u0627\u0646\u0628\u0627\u0634\u062a\u06af\u0631 \u0641\u0627\u0632 (\u06a9\u0647 \u0634\u0628\u06cc\u0647 \u06cc\u06a9 \u0645\u0648\u062c \u062f\u0646\u062f\u0627\u0646\u200c\u0627\u0631\u0647\u200c\u0627\u06cc \u0627\u0633\u062a) \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 &#8220;\u0622\u062f\u0631\u0633&#8221; \u0628\u0647 \u062c\u062f\u0648\u0644 \u062c\u0633\u062a\u062c\u0648 (LUT) \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062c\u062f\u0648\u0644 \u0645\u06cc\u200c\u06af\u0648\u06cc\u062f: &#8220;\u062f\u0631 \u0627\u06cc\u0646 \u0632\u0627\u0648\u06cc\u0647 (\u0641\u0627\u0632)\u060c \u0645\u0642\u062f\u0627\u0631 \u0633\u06cc\u0646\u0648\u0633 \u0686\u0642\u062f\u0631 \u0627\u0633\u062a\u061f&#8221;<\/li>\n\n\n\n<li><strong>\u062a\u0648\u0644\u06cc\u062f \u0645\u0648\u062c \u067e\u0644\u0647\u200c\u0627\u06cc:<\/strong> DAC \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0633\u06cc\u0646\u0648\u0633\u06cc \u0631\u0627 \u0628\u0647 \u0648\u0644\u062a\u0627\u0698 \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062e\u0631\u0648\u062c\u06cc \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0631\u062d\u0644\u0647 \u0634\u0628\u06cc\u0647 \u06cc\u06a9 \u0633\u06cc\u0646\u0648\u0633 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u067e\u0644\u0647\u200c\u067e\u0644\u0647 (Staircase) \u0627\u0633\u062a.<\/li>\n\n\n\n<li><strong>\u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646:<\/strong> \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u06cc\u06a9 \u0641\u06cc\u0644\u062a\u0631 \u067e\u0627\u06cc\u06cc\u0646\u200c\u06af\u0630\u0631 (Low Pass Filter) \u067e\u0644\u0647\u200c\u0647\u0627\u06cc \u062a\u06cc\u0632 \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647 \u0648 \u06cc\u06a9 \u0645\u0648\u062c \u0633\u06cc\u0646\u0648\u0633\u06cc \u0635\u0627\u0641 \u0648 \u062a\u0645\u06cc\u0632 \u062a\u062d\u0648\u06cc\u0644 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u06f3. \u0631\u06cc\u0627\u0636\u06cc\u0627\u062a DDS (\u0641\u0631\u0645\u0648\u0644 \u0627\u0635\u0644\u06cc)<\/h3>\n\n\n\n<p>\u0631\u0627\u0628\u0637\u0647 \u0628\u06cc\u0646 \u0641\u0631\u06a9\u0627\u0646\u0633 \u062e\u0631\u0648\u062c\u06cc \u0648 \u0648\u0631\u0648\u062f\u06cc\u200c\u0647\u0627\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627 \u0641\u0631\u0645\u0648\u0644 \u0632\u06cc\u0631 \u0628\u06cc\u0627\u0646 \u0645\u06cc\u200c\u0634\u0648\u062f:<\/p>\n\n\n\n<p>$$f_{out} = \\frac{M \\times f_{clk}}{2^N}$$<\/p>\n\n\n\n<p>\u06a9\u0647 \u062f\u0631 \u0622\u0646:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>$f_{out}$: \u0641\u0631\u06a9\u0627\u0646\u0633 \u062e\u0631\u0648\u062c\u06cc \u0645\u0648\u062c \u0633\u06cc\u0646\u0648\u0633\u06cc.<\/li>\n\n\n\n<li>$M$: \u06a9\u0644\u0645\u0647 \u062a\u0646\u0638\u06cc\u0645 \u0641\u0631\u06a9\u0627\u0646\u0633 (Binary Tuning Word). \u0639\u062f\u062f\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0641\u0631\u06a9\u0627\u0646\u0633 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u062f\u0647\u06cc\u062f.<\/li>\n\n\n\n<li>$f_{clk}$: \u0641\u0631\u06a9\u0627\u0646\u0633 \u06a9\u0644\u0627\u06a9 \u0645\u0631\u062c\u0639 \u0633\u06cc\u0633\u062a\u0645.<\/li>\n\n\n\n<li>$N$: \u062a\u0639\u062f\u0627\u062f \u0628\u06cc\u062a\u200c\u0647\u0627\u06cc \u0627\u0646\u0628\u0627\u0634\u062a\u06af\u0631 \u0641\u0627\u0632 (\u0631\u0632\u0648\u0644\u0648\u0634\u0646 \u0641\u0627\u0632).<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u0646\u06a9\u062a\u0647 \u0645\u0647\u0645:<\/strong> \u0641\u0631\u06a9\u0627\u0646\u0633 \u062e\u0631\u0648\u062c\u06cc \u0646\u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0627\u0632 \u0646\u0635\u0641 \u0641\u0631\u06a9\u0627\u0646\u0633 \u06a9\u0644\u0627\u06a9 \u0628\u06cc\u0634\u062a\u0631 \u0628\u0627\u0634\u062f (\u0642\u0636\u06cc\u0647 \u0646\u0627\u06cc\u06a9\u0648\u0626\u06cc\u0633\u062a). \u062f\u0631 \u0639\u0645\u0644\u060c \u0628\u0631\u0627\u06cc \u062f\u0627\u0634\u062a\u0646 \u06a9\u06cc\u0641\u06cc\u062a \u062e\u0648\u0628\u060c $f_{out}$ \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u062d\u062f\u0627\u06a9\u062b\u0631 \u06f4\u06f0\u066a \u0627\u0632 $f_{clk}$ \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u06f4. \u0645\u0632\u0627\u06cc\u0627 \u0648 \u0645\u0639\u0627\u06cc\u0628<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u0645\u0632\u0627\u06cc\u0627:<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0631\u0632\u0648\u0644\u0648\u0634\u0646 \u0641\u0631\u06a9\u0627\u0646\u0633\u06cc \u0641\u0648\u0642\u200c\u0627\u0644\u0639\u0627\u062f\u0647:<\/strong> \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0641\u0631\u06a9\u0627\u0646\u0633 \u0631\u0627 \u0628\u0627 \u062f\u0642\u062a\u200c\u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0628\u0627\u0644\u0627 (\u062f\u0631 \u062d\u062f \u0645\u06cc\u06a9\u0631\u0648\u0647\u0631\u062a\u0632) \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f.<\/li>\n\n\n\n<li><strong>\u062a\u063a\u06cc\u06cc\u0631 \u0641\u0631\u06a9\u0627\u0646\u0633 \u0622\u0646\u06cc (Fast Hopping):<\/strong> \u0628\u0631\u062e\u0644\u0627\u0641 PLL\u0647\u0627 \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0641\u0631\u06a9\u0627\u0646\u0633 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0632\u0645\u0627\u0646 \u0646\u0634\u0633\u062a (Settling time) \u062f\u0627\u0631\u0646\u062f\u060c DDS \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u0641\u0631\u06a9\u0627\u0646\u0633 \u0631\u0627 \u0639\u0648\u0636 \u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u067e\u06cc\u0648\u0633\u062a\u06af\u06cc \u0641\u0627\u0632 (Phase Continuity):<\/strong> \u0647\u0646\u06af\u0627\u0645 \u062a\u063a\u06cc\u06cc\u0631 \u0641\u0631\u06a9\u0627\u0646\u0633\u060c \u0641\u0627\u0632 \u0645\u0648\u062c \u0642\u0637\u0639 \u0646\u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u062c\u0647\u0634 \u0646\u0627\u06af\u0647\u0627\u0646\u06cc \u0646\u062f\u0627\u0631\u062f.<\/li>\n\n\n\n<li><strong>\u06a9\u0646\u062a\u0631\u0644 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644:<\/strong> \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0628\u0627 \u0645\u06cc\u06a9\u0631\u0648\u06a9\u0646\u062a\u0631\u0644\u0631\u0647\u0627 \u06cc\u0627 FPGA \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0642\u0627\u0628\u0644 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0633\u062a.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u0645\u0639\u0627\u06cc\u0628:<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0646\u0648\u06cc\u0632\u0647\u0627\u06cc \u0627\u0633\u067e\u0648\u0631\u06cc\u0648\u0633 (Spurs):<\/strong> \u0628\u0647 \u062f\u0644\u06cc\u0644 \u062e\u0637\u0627\u0647\u0627\u06cc \u06a9\u0648\u0627\u0646\u062a\u0627\u06cc\u0632\u0627\u0633\u06cc\u0648\u0646 \u062f\u0631 DAC \u0648 \u0641\u0634\u0631\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u062c\u062f\u0648\u0644 LUT\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0641\u0631\u06a9\u0627\u0646\u0633\u200c\u0647\u0627\u06cc \u0646\u0627\u062e\u0648\u0627\u0633\u062a\u0647\u200c\u0627\u06cc \u0628\u0627 \u062f\u0627\u0645\u0646\u0647 \u06a9\u0645 \u062f\u0631 \u062e\u0631\u0648\u062c\u06cc \u0638\u0627\u0647\u0631 \u0634\u0648\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0641\u0631\u06a9\u0627\u0646\u0633:<\/strong> \u0634\u0645\u0627 \u0647\u0645\u06cc\u0634\u0647 \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u06a9\u0633\u0631\u06cc \u0627\u0632 \u0641\u0631\u06a9\u0627\u0646\u0633 \u06a9\u0644\u0627\u06a9 \u0647\u0633\u062a\u06cc\u062f. \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0641\u0631\u06a9\u0627\u0646\u0633\u200c\u0647\u0627\u06cc \u06af\u06cc\u06af\u0627\u0647\u0631\u062a\u0632\u06cc\u060c \u0646\u06cc\u0627\u0632 \u0628\u0647 \u06a9\u0644\u0627\u06a9\u200c\u0647\u0627\u06cc \u0686\u0646\u062f \u06af\u06cc\u06af\u0627\u0647\u0631\u062a\u0632\u06cc \u062f\u0627\u0631\u06cc\u062f \u06a9\u0647 \u06af\u0631\u0627\u0646 \u0648 \u067e\u0631\u0645\u0635\u0631\u0641 \u0647\u0633\u062a\u0646\u062f.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u06f5. \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0645\u0648\u0644\u062f \u0633\u06cc\u06af\u0646\u0627\u0644 (Function Generators):<\/strong> \u062f\u0633\u062a\u06af\u0627\u0647\u200c\u0647\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634\u06af\u0627\u0647\u06cc \u062a\u0648\u0644\u06cc\u062f \u0645\u0648\u062c.<\/li>\n\n\n\n<li><strong>\u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0631\u0627\u062f\u0627\u0631\u06cc:<\/strong> \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0645\u0648\u062c\u200c\u0647\u0627\u06cc Chirp (\u0645\u0648\u062c\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0641\u0631\u06a9\u0627\u0646\u0633\u0634\u0627\u0646 \u0628\u0627 \u0632\u0645\u0627\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f).<\/li>\n\n\n\n<li><strong>\u0645\u062e\u0627\u0628\u0631\u0627\u062a:<\/strong> \u062f\u0631 \u0645\u062f\u0648\u0644\u0627\u0633\u06cc\u0648\u0646\u200c\u0647\u0627\u06cc \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0645\u062b\u0644 FSK \u0648 PSK.<\/li>\n\n\n\n<li><strong>MRI \u0648 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u067e\u0632\u0634\u06a9\u06cc:<\/strong> \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u062f\u0642\u06cc\u0642 \u067e\u0627\u0644\u0633\u200c\u0647\u0627\u06cc RF.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Direct Digital Synthesizer \u06cc\u0627 DDS (\u0633\u0646\u062a\u0632\u06a9\u0646\u0646\u062f\u0647 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645)\u060c \u06cc\u06a9 \u0631\u0648\u0634 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0634\u06a9\u0644\u200c\u0645\u0648\u062c\u200c\u0647\u0627\u06cc \u0622\u0646\u0627\u0644\u0648\u06af (\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0633\u06cc\u0646\u0648\u0633\u06cc) \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0646\u0637\u0642 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0627\u0633\u062a. \u0628\u0647 \u0632\u0628\u0627\u0646 \u0633\u0627\u062f\u0647\u060c DDS \u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 &#8220;\u067e\u062e\u0634\u200c\u06a9\u0646\u0646\u062f\u0647 \u0645\u0648\u0633\u06cc\u0642\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0633\u0631\u06cc\u0639&#8221; \u0639\u0645\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0628\u0647 \u062c\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u06cc\u06a9 \u0622\u0647\u0646\u06af \u0637\u0648\u0644\u0627\u0646\u06cc\u060c \u06cc\u06a9 \u0642\u0637\u0639\u0647 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0648\u062a\u0627\u0647 \u0627\u0632 \u06cc\u06a9 \u0645\u0648\u062c \u0633\u06cc\u0646\u0648\u0633\u06cc \u0631\u0627 \u0628\u0627\u0631\u0647\u0627 \u0648 \u0628\u0627\u0631\u0647\u0627 \u0628\u0627 &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[214,212,213],"class_list":["post-1238","post","type-post","status-publish","format-standard","","category-13","tag-dds","tag-direct-digital-synthesizer","tag-213"],"_links":{"self":[{"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/posts\/1238","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/comments?post=1238"}],"version-history":[{"count":1,"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/posts\/1238\/revisions"}],"predecessor-version":[{"id":1239,"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/posts\/1238\/revisions\/1239"}],"wp:attachment":[{"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/media?parent=1238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/categories?post=1238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ilk.ir\/sahifa\/wp-json\/wp\/v2\/tags?post=1238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}