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光机扫描的红外成象系统的发展,主要是受制于探测器的水平。使用单元探测器的成象系统的帧速,一般说来是难做到与电视兼容的。随着探测器列阵的发展,各种串扫、并扫或串、并复合扫描的成象系统相继出现,其信息速率可以与电视相比拟,例如联邦德国西门子公司的SIFLIR系统,使用的是光导型55元碲镉汞探测器列阵,5个串扫,11行并扫。通过串扫,信噪比提高5~(1/2)倍,通过并扫,象素在探测器上的驻留时间延长,使带宽压缩
The development of the optical scanning infrared imaging system is mainly subject to the level of the detector. The frame rate of the imaging system using the unit detector is generally hard to be compatible with the television. With the development of detector arrays, a variety of serial, parallel or serial scanning and composite scanning imaging systems have emerged, with information rates comparable to those of televisions, such as the SIFLIR system of the Federal Republic of Germany, using Light guide 55 yuan HgCdTe detector array, 5 string scan, 11 lines and sweep. Through the serial scan, the signal to noise ratio increased by 5 ~ (1/2) times, and by scanning, the pixel in the detector on the dwell time, the bandwidth compression