电磁抗扰度 车外源（混响室法） 第16部分 辐射电磁场的抗扰度

[中文适用范围]： 1. 范围 1.1 车辆电气/电子系统在浸入广播电台和电视广播电台、雷达和通信站点、移动发射器、蜂窝电话等源产生的电磁场时可能会受到影响。SAE J551 的这一部分规定了关闭-在混响室内测试乘用车和商用车的车辆辐射源测试方法和程序。该方法用于评估车载电子设备在 80 MHz 至 2 GHz 频率范围内的抗扰度，并可能扩展至 20 MHz 至 10 GHz，具体取决于腔室尺寸和结构。文件中描述了三种校准和施加电磁场的方法：1) 模式调谐混响室方法、2) 模式搅拌（标准）混响室方法和 3）模式搅拌（混合）混响室方法。 [外文原描述]： Vehicle electrical/electronic systems may be affected when immersed in an electromagnetic field generated by sources such as radio and TV broadcast stations, radar and communication sites, mobile transmitters, cellular phones, etc. This part of SAE J551 specifies off-vehicle radiated source test methods and procedures for testing passenger cars and commercial vehicles within a Reverberation Chamber. The method is used to evaluate the immunity of vehicle mounted electronic devices in the frequency range of 80 MHz to 2 GHz, with possible extensions 20 MHz to 10 GHz, depending upon chamber size and construction. Three methods for calibrating and applying electromagnetic fields are described in the document: 1) Mode Tuned Reverberation Chamber method, 2) Mode Stir (Standard) Reverberation Chamber method and 3) Mode Stir (Hybrid) Reverberation Chamber method. Optional pulse modulation testing at HIRF (High Intensity Radiated Fields) test levels, based upon currently known environmental threats, has been included in this revision of the standard. Each method has its advantages and disadvantages which are discussed in each individual test section. All methods have been proven to be effective at finding potential field issues at the vehicle level. SAE J551-1 specifies general definitions, practical use, and basic principles of the test procedure. Specific chamber characterization procedures, formulas and calibration procedures for the Mode Tuned and Mode Stir (Standard) methods can be found in SAE J1113-28 and J1113-27 respectively. Chamber characterization procedures for the Mode Stir (Hybrid) method are described in 6.3 of this document.Cross Reference: IEC61000-4-21,IEC61000-4-3,J1113-27,J1113-28,J1113/27_201206,J1113/28,J1812_201306,J1812_201809,J551-1,J551/1_201501