2018 Volume 7 Issue 1 Pages 25-30
This paper presents a novel dual-channel HF radar system for ionospheric sounding, which is called Wuhan Multifunctional Ionosonde with dual channels (WMI-DC). Based on the Universal Serial Bus (USB), and a high performance FPGA, this newly designed WMI-DC has a complete digital structure, which makes it portable and flexible. And due to the application of m sequence waveform, the WMI-DC can achieve good results with low power. The primary modules and the data processing are illustrated in detail in this paper. The experimental results indicate that the dual-channel system can separate ordinary wave (O-wave) and extraordinary wave (X-wave) from the signals.