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设计了一种新型电离层斜向探测雷达,该雷达采用脉间相位编码体制来实时测得斜向探测电离图和多普勒电离图,还利用全球定位系统(GPS)时间频率信号源和单片机来实现发射端和接收端的时间和频率同步,从而得到ns量级的时间同步精度和10-12量级的频率同步精度.该雷达的大部分功能都通过可编程软件来实现,通过加载相应的软件,雷达在进行斜向探测的同时,还实现了斜向返回探测.实际探测结果表明:在发射端和接收端相距1 200 km时,该雷达不仅得到了斜向探测电离图和多普勒电离图,还得到了斜向返回探测电离图和多普勒电离图.
A new type of ionospheric oblique detection radar is designed. The radar uses the pulse phase coding system to measure the oblique detection ionogram and the Doppler ionization map in real time, and also uses the global positioning system (GPS) time-frequency signal source and the singlechip To achieve time and frequency synchronization between the transmitter and receiver, resulting in time-synchronization accuracy of ns magnitude and frequency synchronization accuracy of the order of 10 to 12. Most of the functions of the radar are realized through programmable software, by loading the corresponding Software and radar have also realized the oblique return detection while carrying out the oblique detection.The actual detection results show that the radar has not only obtained the oblique detection ionogram and the Doppler when the distance between the transmitting end and the receiving end is 1 200 km Ionogram, but also got the oblique return probe ionogram and Doppler ionization.