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| Radar Range Ambiguity Performance and Sidelobe Suppression of
Linear Contracting Waveform |
| Zhang Shi-yuan; Wu Le-nan |
| Department of Radio Eng., Southeast Univ., Nanjing 210096, China |
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Abstract A new type of radar waveform called Linear Contracting Waveform is presented. To suppress the sidelobe of such waveform’s matched output , a digital filter is adopted. The simulation results show that , for the range ambiguity function of such waveform, the peak sidelobe is -18~-20dB,and the 4dB mainlobe width is only 54~70 percent of that of the linear frequency modulated (LFM) signal with the same parameters. Filtering the compressed form of such waveform by the improved digital sidelobe suppression filter, the output signals’ peak sidelobe level is as low as -50dB, and the mainlobe width is only unit sample length.
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Received: 31 December 2004
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2006, Vol. 28 
