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[求助]高频频谱分析仪原理,电路图!谢谢!!

2008-11-12 08:25

急求高频频谱分析仪原理,电路图分析!!<br/><?xml:namespace prefix = p ns = "urn:schemas-microsoft-com:office:powerpoint" /><p:colorscheme colors="#ffffff,#000000,#808080,#000000,#bbe0e3,#333399,#009999,#99cc00"></p:colorscheme>&nbsp;
<div class="O" v:shape="_x0000_s1026">
<div style="mso-line-spacing: '100 20="20"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-oveRFlow: 1"><span style="FONT-SIZE: 67%"><span style="LEFT: -5.34%; POSItiON: absolute; mso-special-format: bullet">?</span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">主要技术指标: </span></div>
<div style="mso-line-spacing: '100 20="20"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1"><span style="FONT-SIZE: 67%"><span style="LEFT: -5.34%; POSITION: absolute; mso-special-format: bullet">?</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">1</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">、频率测量范围:</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">3KHz </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">~</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">60MHz</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">; </span></div>
<div style="mso-line-spacing: '100 20="20"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1"><span style="FONT-SIZE: 67%"><span style="LEFT: -5.34%; POSITION: absolute; mso-special-format: bullet">?</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">2</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">、频谱显示宽度:</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">0.2 </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">~</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">30KHz</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">; </span></div>
<div style="mso-line-spacing: '100 20="20"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1"><span style="FONT-SIZE: 67%"><span style="LEFT: -5.34%; POSITION: absolute; mso-special-format: bullet">?</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">3</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">、频标间隔:</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">100Hz</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">±</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">3%</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">、</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">1000Hz</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">±</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">3%</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">; </span></div>
<div style="mso-line-spacing: '100 20="20"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1"><span style="FONT-SIZE: 67%"><span style="LEFT: -5.34%; POSITION: absolute; mso-special-format: bullet">?</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">4</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">、谱线分辨率:对相距</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">50Hz</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">的信号谱线分至</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">-45dB</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">以下; </span></div>
<div style="mso-line-spacing: '100 20="20"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1"><span style="FONT-SIZE: 67%"><span style="LEFT: -5.34%; POSITION: absolute; mso-special-format: bullet">?</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">5</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">、频谱幅值显示范围:</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">0 </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">~</span><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">-60dB</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-fareast-font-family: 宋体; mso-hansi-font-family: Arial">。 </span></div>
<div style="mso-line-spacing: '100 50="50"  0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1"></div></div>

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