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This article discusses the new generation of ocean Mobile Monitoring Emergency Monitoring System multimedia approach, details of the mobile multimedia surveillance system to monitor emergency set of field test of identification, satellite broadcasting, data transmission, video conferencing, communications command in one mobile emergency monitoring platform. Extract of which involved the theory and...
The magnetic-induced drift is an important error to limit the precision of four frequency differential ring laser gyro (DILAG) in navigation application. Different from the traditional magnetic shielding technology, this paper introduces a new method to decrease the magnetic sensitivity of DILAG, simply by adjusting the frequency stabilization mode. Firstly, the physics principle of the method is...
The start-up drift of four frequency differential laser gyro is of great importance in the fast launching occasions like missiles and fighter plane. This paper studies the characteristics of startup drift and presents two kinds of compensation methods. Based on the traditional mathematic model in terms of temperature, temperature changing rate and temperature gradient, the software compensation is...
The detection and control system is an important part of ring laser gyro (RLG) to process the signals by electronics. To overcome shortcomings of the traditional analog circuits, this paper puts forward a set of digital detection and control system. Based on the DSP TMS320F2812 and the necessary analog interface including acquisition circuits and driving circuits for the specific physics parameters...
The gain stability is an important factor to influence the performance of ring laser gyro (RLG). Traditional method is stabilizing the discharging current which has been proved to be incorrect by experiment. Based on the analysis of the physics essence of laser gain, this paper puts forward a new method for gain stabilization using fuzzy-PID control algorithm. Through adjusting the discharging current...
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