SAW-chirp压缩接收技术研究(英文)  

Study on SAW-chirp Compression-receive Technology

作　　者：彭江陵[1] 刘建国[1] 李庆洪[1] 黄俊[1] 张永川[1] 

机构地区：[1]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2010年第1期7-11,18,共6页Piezoelectrics & Acoustooptics

摘　　要：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。The new demands of the modern electronic warfare（EW） for the reeievers have been introduced in this paper. The principles and features of the compressive receiver have been analyzed. The key teehnolgies 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-modula- tion 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 4-375 kHz, the sensitivity of less than -80 dBm and the dynamic range of bigger than 60 dB.

关 键 词：声表面波 延迟线 接收机 压缩接收技术 傅里叶变换 

分 类 号：TN65[电子电信—电路与系统]