北京无线电测量控制研究所
纸质出版:1981
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[1]童铠.FFT在PD雷达中截获与跟踪高速和高加速目标的应用[J].电子学报,1981(06):13-22.
Tong Kai. Application of FFT Technique in Resolving Acquisition and Tracking Problems of Targets with High Velocity and High Acceleration inthe Pulsed-Doppler Radars[J]. Acta Electronica Sinica, 1981, (6): 13-22.
本文分析了脉冲多卜勒精密跟踪雷达中FFT数字信号处理设备的速度、加速度模糊函数
给出了32点的模糊图模型
并应用数论的方法导出了高加速度条件下旁瓣分布的计算公式
提出了预先进行数字式加速度配相的FFT速度与加速度处理方法。这种处理设备可以取代现行使用的数字、模拟混合式时间压缩器。
: This paper is concerned with the velocity-acceleration ambiguity diagrams of FFT digital signal processor in pulsed-doppler precise tracking radars. A 32-points model of the velocity-acceleration ambiguity diagram by numerical calculation is given and an analytical solution for distribution of all side lobes is described by "Theory of Numbers". A method for measuring target velocity and acceleration iy complementary calculation to match acceleration phase shifts in FFT technique is recommended. The devices made by this method will successfully replace analog-digital time compressor for targets acquisition and measurements.
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