It made a analysis of SNR and BER by taking into account the effects of phase-induced intensity noise (PIIN), shot noise, thermal noise and dark current noise.
在理想条件下及在考虑相位引起的强度噪声(PIIN)、热噪声、散弹噪声、暗电流噪声的情况下，分析了系统信噪比和误码率。
参考来源 - 光谱幅度编码光码分多址关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The dark current that affects CCD detection sensitivity is described. The generating mechanism of dark current noise and its influence on CCD performance are analyzed.
阐述了影响CCD探测灵敏度的暗电流及暗电流噪声的产生机理，分析了其对CCD性能的影响。
In the meanwhile, with using more accurate expression of the avalanche excess noise factor, we give a relation schema between sensitivity and dark current.
同时，采用了较为精确的过剩噪声系数表达式，给出了灵敏度与暗电流的关系曲线。
The device can effectively improve photoelectric conversion gain of devices, limit the dark current of devices, and reduce the noise of devices, so as to obtain higher signal-to-noise.
该器件可以有效提高器件光电转换增 益，限制器件的暗电流，降低器件噪声，得到高的信噪比。
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