A new wavelet-bispectrum united detection algorithm is proposed to face with problems such as the complex structure and low signal to noise ratio of radar echo, when there exist difficulties in detecting impulses in through-wall radar systems.

The UWB (Ultra wide band) through-the-wall radar is a new techology of radar- exploration, which penetrates the wall and other opaque obstuctions by sending super broad band electromagnetic wave, can be used in detection, orientation and imaging of the targets.

The dissertation studied the through-the-wall radar system design and simulation, the main problems of the thesis studied as below: The dissertation introduced the ultra-wideband stepped-frequency signal and the imaging principle of high range resoulution, i.

The Technology of Pulse Generator of An Ultra Wideband Through Wall Radar;