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首页> 外文期刊>IEE proceedings. Radar, sonar and navigation >Microwave intercept receiver sensitivity estimation
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Microwave intercept receiver sensitivity estimation

机译：微波拦截接收机灵敏度估计

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摘要

The author applies probability and correlation analysis methods to predict the RF sensitivity and measurement accuracy of wideband automatic electronic warfare (EW) systems. The effects of system noise on the accuracy and fidelity of the main EW parameter estimators, pulse width, frequency and bearing in the critical threshold region are investigated. The sensitivity analysis technique is suitable for use in modern software spreadsheets to generate accurate and realistic system budgets and covers receiver systems driven by RF channels exhibiting large scale gain variations. The method divides the RF band into a number of subbands and derives equations for the analysis of multiplier-based demodulators used in instantaneous frequency measurement (IFM) and interferometer systems. Common receiver demodulators are compared in terms of signal-to-noise performance and include the square law detector, the coherent detector, delay line discriminators and the interferometer or homodyne. The article also compares the design and performance of some example receiver types.
机译：作者运用概率和相关分析方法来预测宽带自动电子战（EW）系统的RF灵敏度和测量精度。研究了系统噪声对关键电子阈值估计器的精度和保真度，脉冲宽度，频率和临界阈值区域中的方位的影响。灵敏度分析技术适合在现代软件电子表格中使用，以生成准确而切合实际的系统预算，并覆盖由射频通道驱动的接收机系统，该系统呈现出大规模的增益变化。该方法将RF频段划分为多个子频段，并导出了用于分析瞬时频率测量（IFM）和干涉仪系统中基于乘法器的解调器的方程。常用的接收器解调器在信噪比方面进行了比较，包括平方律检测器，相干检测器，延迟线鉴别器和干涉仪或零差。本文还比较了一些示例接收器类型的设计和性能。

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