监测接收机高分辨率快速扫描设计与实现  

Design and implementation of high spectrum resolution andfast scanning

作　　者：韩连龙 陈安军 刘传栋 Han Lianlong;Chen Anjun;Liu Chuandong(China Electronics Technology Instruments Co.Ltd.,Qingdao Shandong,266555)

机构地区：[1]中电科仪器仪表有限公司,山东青岛266555

出　　处：《电子测试》2021年第4期5-8,共4页Electronic Test

基　　金：国家重大科学仪器设备开发专项项目“宽频带高性能电磁信息安全测试仪开发与应用(2018YFF01014300)”资助。

摘　　要：本方案针对无线频谱监测接收机在常规监测中由于扫描速度慢,分辨率低,从而造成信号截获概率低的问题,在总结和分析不同频谱扫描方式特点的基础上,基于软件多线程协调工作的思想,在相互衔接的调谐步进点上设计了一种基于多DSP并行处理的FFT步进扫描方案,发挥其在高分辨率频谱处理上的优势,便于让用户在常规监测时尽可能地发现突发的瞬态、跳频等信号;最后通过实验结果(分辨率带宽2.3kHz条件下,扫描速度达到了4.13GHz/s)验证了本方案的有效性。Radio spectrum monitoring receiver demands for high spectrum resolution and fast spectrum scanning speed.On the basic of summarizing and analyzing the characteristics of different spectrum scanning implementation schemes,we propose a realistic FFT step spectrum scanning scheme based on software control multi-DSP parallel processing.And in the framework of multi-threaded communication,we realize the function of high spectrum resolution and fast scanning speed for broadband spectrum in engineering.The experimental results which can reach a spectrum scanning speed of 4.13GHz/s under condition of resolution bandwidth of 2.3kHz show that this design scheme is effective.

关 键 词：无线频谱监测 频谱扫描 多DSP并行处理 多线程协调 

分 类 号：TN850[电子电信—信息与通信工程]