dephi OBD II 技术路线,所谓OBD-II是一个系列的法规，目的是通过检测整个动力总成系统的故障或劣化来减少在用车的排放，排放控制系统是OBD-II的基础。OBD-II同时也提供诊断的标准化，修理及其他相关服务的标准化。当车辆的排放（HC,CO,NOx)由于被检测的零部件/系统的劣化而超出相关标准的1.5倍时，故障指示灯（MIL）必须被点亮以通知驾驶员，并同时记录故障码。

CO,CO2,SO2,NOx,HC红外气体吸收光谱特性模型,hitran数据库分析数据-CO, CO2, SO2, NOx, HC infrared gas absorption spectral characteristics model, hitran database analysis of data

谱减法的噪声消除Spectral subtraction noise elimination-Spectral subtraction noise elimination

Air pollution is a social and transboundary environmental issue, and pollution-related problems are especially acute inChina. With the rapid growth of the Chineseeconomy, massive sulfur oxide (SOx) and nitrogen oxide (NOx) air pollutionis caused by f