Abstract
Pulse compression can be performed in noncoherent radars by using coded on-off keying (OOK). We show how any bipolar pulse-compression code (e.g., Barker) can be modified into unipolar OOK through Manchester coding. The resulted transmitted signal is a burst of dense subpulses, with pulse position modulation. In the receiver, the envelop-detected signal is aperiodically cross-correlated with a mismatched bipolar reference signal, yielding noncoherent integration with a low-sidelobe response. The concept can be used in simple radars where Doppler information is not required, in direct-detection laser radars and in ultrawideband (UWB) radars. Examples are given with bursts of 13 and 70 subpulses. Detection probabilities dependence on SNR is studied and compared with coherent processing.
| Original language | English |
|---|---|
| Pages (from-to) | 756-765 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Aerospace and Electronic Systems |
| Volume | 42 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 2006 |
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