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In this paper, a human head from nuclear electromagnetic pulse (NEMP) is simulated by using CST program for the analysis of Specific Absorption (SA) in the human head at 1 MHz, 30 MHz, 200 MHz, 300 MHz, 350 MHz and 400 MHz. The human head model is homogeneous and simulated with the brain equivalent material. And the NEMP is described by a double exponential pulse shape with some characteristic parameters...
To make the carrier-borne electronic equipments working without interference to exert completely the efficiency of naval combat system, electromagnetic compatibility of the whole ship formation should be guaranteed. This paper describes the mathematical models that predict interference between warships assuming antenna-to-antenna coupling. The propagation loss for warship formation is analyzed detailedly...
The problem of targets from the sea surface with breaking waves is investigated by using a new model. This model is developed which extends the range of validity of Anderson's result. A general expression for the radar cross section is obtained taking into account the influence of whitecaps by breaking waves. Therefore, using this model, we can obtain the more exact results about target information.
Based on the characteristics of cosite coupling interference between transmitting and receiving antennas in a same battleship, a novel approach using the normalized least mean square (NLMS) algorithm to suppress the interference is proposed. Firstly, this paper analyses the principle of adaptive interference cancellation (AIC), then a simulation example is offered to show the implementing effect of...
Nowadays, the measurement methods for ship radar cross section (RCS) are of many kinds, but the traditional ones exist some shortages. In view of this situation, this paper mainly presents two atypical methods for ship RCS measurements, which are respectively based on the laser and the acoustic wave technology. Using scaled theory to test the target, both of the two methods can to some certain extent...
Cosite coupling interference between transmitting and receiving antennas is one of the main electromagnetic interferences in modern warships, and it seriously affects the warship's EMC and battling performance. This paper analyses the principle of interference suppression using adaptive interference cancellation (AIC) technique, and describes an implementing scheme. At last, an experiment programme...
Based on the characteristics of cosite coupling interference between transmitting and receiving antennas in a same battleship, this paper analyses the principle of interference suppression using adaptive interference cancellation (AIC) method, and describes an implementing scheme. At last, an experiment programme and some results are provided to demonstrate the effectiveness of the AIC system. Experiment...
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