【摘要】 在CCD信号采集系统中,当CCD像元读出频率较高时,其复位噪声已成为CCD噪声源中不可忽视的重要部分。针对CCD输出噪声特点,建立噪声传输函数及其分析模型,利用相关双采样(CDS)技术对CCD输出信号中的复位噪声进行了理论分析和相关测试。结果表明,只要选择合适的采样时间,可以最大限度地抑制复位噪声。更多还原

【Abstract】 In CCD signal acquisition system,reset noise becomes much more important compared with other noise sources at high pixel readout frequencies.According to CCD output noise characteristics,the noise transmission function and analysis model are established,and the reset noises is tested by using the most suitable correlated double sampling(CDS) technology.Experimental result shows that reset noises can be farthest restrained by selecting suitable sampling time.更多还原