The article analyzes the significance of submarine electronic support measures(ESM)system under the information warfare condition,introduces the development status of submarine ESM system at home and abroad,analyzes and studies the challenges and difficulties at many aspects of battlefield electromagnetic environment,radar anti-reconnaissance measures,radar signal identification,etc.

The position and tactics of shipbome artillery reconnaissance and anti-reconnaissance in crossing-sea & landing warfare are discussed in this paper,and the discussion is meaningful to im- prove our reconnaissance and anti-reconnaissance abilities in future war.

This paper made a brief introduction to the shipboard ultrashort wave communication system,and discussed the characteristics of shipboard ultrashort wave LOS communication,and analyzed the capability of counter-countermeasure and anti-reconnaissance.

In this paper,a counter-reconnaissance measure of radar based on counter in-pulse character identification is presented in order to satisfy the needs of future integrated EW and improve survivability of radar in battlefield.

In recent years, research on those wall-climbing robots that perform anti-terrorism surveillance tasks on the high-building is becoming more and more popular.

Based on the analysis of electronic countercountermeasure pressure that combined air defense operation faced with in complicated electromagnetic environment,this paper puts forward the idea of establishing the combined air defense electronic countercountermeasure system which integrates the antielectronic reconnaissance,antielectronic jamming,antielectronic stealth,etc.