Hi everyone,
Could anyone show me some approaches for detecting and extracting wideband radar signals in ELINT systems? The receiver bandwidth is about 500 MHz.
I am currently following the time-frequency (T-F) analysis approach. However, I don't know which T-F technique is the most efficient one for this application?
So, could anyone help me in narrowing down the research?
Many thanks.
Hello,
This is a very broad question as there are a number of ways to generate wideband radar signals, e.g. pseudo noise sequences, narrow pulse, frequency chirps, frequency hopping, etc.
Best regards!
Hello George Slade,
1. Thank you for your caution about the pre-processing power. My mission is to design an algorithm which is able to detect and extract all radar pulses in the instantaneous bandwidth of 500 MHz in real-time.
2. I have no idea what I am looking for because there are so many types of radar signals out there. There algorithm should be universal enough to detect and extract most of radar signals at as low SNR as possible.
3. I have read some time-frequency analysis techniques. In the future, I will try with Short-time Fourier Transform and Wavelet transform techniques. Some other T-F techniques (e.g. Wigner-Ville distribution, Choi-Williams distribution, ...) may not be suitable in this scenario because of the cross-terms.
Do you have any additional suggestion for me?
Thanks and Best Regards,
Van Long
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