Broadband superheterodyne tracking circuits for millimeter‐wave measurements

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Broadband superheterodyne tracking circuits for millimeter‐wave measurements

机译：用于毫米波测量的宽带超外差跟踪电路

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Superheterodyne stimulus‐response measurements can be made with high dynamic range, but are often sensitive to oscillator frequency drift and noise. The usual techniques for reducing this sensitivity often become impractical at millimeter‐wave frequencies and above. This paper describes a feedforward tracking technique and its application to single frequency millimeter‐wave interferometry and Doppler‐shift scattering measurements on tokamak plasmas. Swept frequency transmission measurements can also be made with high dynamic range using this technique.

机译：超级外差激励响应测量可以在高动态范围内进行，但通常对振荡器频率漂移和噪声敏感。降低此灵敏度的常用技术通常在毫米波频率及更高频率下变得不切实际。本文介绍了一种前馈跟踪技术及其在托卡马克等离子体的单频毫米波干涉测量和多普勒频移散射测量中的应用。使用此技术，也可以在高动态范围内进行扫频传输测量。

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《Review of Scientific Instruments》 |1980年第3期|P.317-320|共4页
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机译：用于毫米波测量的宽带超外差跟踪电路

Broadband superheterodyne tracking circuits for millimeter‐wave measurements

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