静电场耦合对车载智能网联终端无线通信连接的影响

Effect of electrostatic field coupling on of wireless communication performance of vehicle intelligent network terminal

论述了静电放电试验中,车载智能网联终端和模拟基站连接状态下,静电场耦合导致的系统异常的性能降级的问题。研究中比较了不同制式下的试验结果,在模拟基站天线处采集了静电场耦合的幅值,并在模拟基站端口进行了频谱采集,最后采用在模拟基站端口插入特定的带通滤波器的方法验证了静电场对车载智能网联终端和模拟基站组成的系统会产生影响。结果表明,由静电场耦合至基站天线并传输至模拟基站端口的宽频率脉冲是导致系统异常的性能降级和功能失效的主要因素。为车辆智能网联终端静电放电试验及静电防护性能判定提供一些理论支撑和经验借鉴。

The problem were discussed that systematic degradation caused by electrostatic field coupling.By comparing the test results at different configuration conditions,collecting the voltage coupling from electrostatic field,collecting spectrum at analog station,and verifying the result with a specific filter.The results showed pulse coupling from electrostatic field and transfer to analog station port was the main factor for performance degradation or function failure.It provides some theoretical support and experience reference for vehicle intelligent network terminal electrostatic discharge test and electrostatic protection performance judgment.