Efficiency, including detection capacity, space target number in radar detecting range in five minutes and duration of radar detection space target, can be analyzed quickly based on radar efficiency simulation system for detecting space target.

By the analysis of theory of radar detection and limition to the radar in the low altitude and the threat range,the deficiency of the conventional radar in the detection of the low altitude was illuminated.

Based on pushing radar apparent distanc formula,this paper studies radar apparent distanc of different altitude,the result has guiding meaning for teaching of radar system,radar detection power,analysis of radar information and accuracy analysis of height finding radar.

To study the problem of radar detection of aircraft wake vortex in wet air such as in rain and fog,analytical expressions are derived respectively for the Doppler velocity spectrum of wake vortices\' echoes,the radar equation and its detectability factor of the detection of wake vortices.

In view of the shortage of traditional technology of landmine detection,a new method of microwave enhanced infrared detection technology in non-contact landmine detection is introduced.

For single landmine detection with the passive infrared imaging technology of the landmine detection,the infrared images were processed according to the 1-D signal detection theory and the algorithms for modern signal processing.