CAJ | 학술논문

介绍了现代电子战对接收机技术的新要求,分析了压缩接收机的原理及特点,指出了实现压缩接收机的关键技术:大带宽chirp信号的产生及处理;高速串行宽带视频信号的数字化处理技术;超大瞬时带宽的实现.给出了SAW调频延迟线实现压缩接收单元的具体方法,提供了包括连续波信号、调制信号的测试数据和波形,样品得到了瞬时带宽250 MHz、频率精度±375 kHz、灵敏度小于-80 dBm、动态范围大于60 dB的较好指标.
개소료현대전자전대접수궤기술적신요구,분석료압축접수궤적원리급특점,지출료실현압축접수궤적관건기술:대대관chirp신호적산생급처리;고속천행관대시빈신호적수자화처리기술;초대순시대관적실현.급출료SAW조빈연지선실현압축접수단원적구체방법,제공료포괄련속파신호、조제신호적측시수거화파형,양품득도료순시대관250 MHz、빈솔정도±375 kHz、령민도소우-80 dBm、동태범위대우60 dB적교호지표.
The new demands of the modern electronic warfare(EW) for the recievers have been introduced in this paper.The principles and features of the compressive receiver have been analyzed.The key technolgies for realizing the compressive receiver have been presented,that is,the generating and processing technique of the chirp signals with wide bandwidth, the digitalization processing technique of the high-speed serial wide-band video signals,the realization of the ultra-large instantaneous bandwidth.The specific method of using the SAW frequency-modulation delay lines to realize the compression-receive units has been given.The test data and waveforms of the continuous wave signals and the modulation signals have been also given. The sample has good indexes of the instantaneous bandwidth of 250 MHz,the frequency accuracy of ±375 kHz, the sensitivity of less than -80 dBm and the dynamic range of bigger than 60 dB.