Engineering analysis to the wireless fire alarm system's electromagnetic compatibility

Based on the engineering design channel model,from the engineering analysis to the utility of the system modulating technology and the processing gain in the wireless fire alarm system,conclusions as follow were educed: The utility of thedirect sequence spread spectrum technology and the use of lower information transmission rate and the higher rate of pseudo-code will improve the electromagnetic compatibility and the anti-jamming capability of the system,which will ensure the reliability of the signal transmission and provide a theoretical basis for applying the system in more complex engineering environment.