接入条件 meaning in English

ac access conditions

The thesis analyses the principles of the physical layer and data link layer of gsm system and the signal processing theories of gsm under unauthorized circumstances . computer simulations are given to show the feasibility of these theories . the design of real - time processing system of gsm signal is introduced , which includes a real - time processing circuit , a dsp software system and a computer monitor platform
本文分析了gsm系统无线接口的物理层和数据链路层的工作原理；详细阐述了非正常接入条件下的gsm信号处理理论，并给出仿真结果；介绍了gsm信号实时处理系统的设计，包括实时处理电路和dsp软件系统的开发，以及主机监控平台的设计。