A NEW OPERATION MODE OF RADAR WITH LFM BURST SIGNAL
使用线性调频脉冲串信号的新雷达工作模式

In order to overcome the conflicts between high range resolution and wide bandwidth of Linear Frequency Modulated (LFM) signal, a new operating mode of radar is suggested. The radar signal is a series of LFM signal-LFM burst. When the echoes return, every burst was compressed with matched filter first. Integration was accomplished later among these bursts to improve the range resolution. LFM burst mode can raise the radar range resolution several times without widening the system bandwidth. On the other hand, the system bandwidth can decrease greatly with the same range resolution. The paper not only brought out the operating theory of this new LFM burst mode, but also concluded its properties. Multi-objects echo and Doppler property of the moving objects are analyzed in detail as well.