摘要
报告了在２５６型数字式测高仪和ＳＳＪＸ－１接收系统之间的斜向探测，收发两端采用ＢＰＭ钟同步。本系统实现观测自动化，电离图数字化，尤其是采用高通数字滤波器对抑制外部干扰是很成功的。输出资料是电离图和信号能量～频率图。
China Research institute of Radiowave Propagation is conducting oblique sounding studies between its Uigisonde 256 and SSJX- 1 receiver. SSJX- 1 receiver receives echoes from oblique propagation path of Digisonde256 while it does bertical-incidence sounding. The timing of Digisonde 256 and SSJX- 1 receiver is controlled by timing pulses that are derived from BPM shortwave clocks. The software of the digitsl signal processing runs on AST premium 386 SX/16 microcomputer. A high pass digital filter is very successful to suppress external interference.
出处
《电波科学学报》
EI
CSCD
1994年第4期81-88,共8页
Chinese Journal of Radio Science
基金
国家自然科学基金
