CAJ | 학술논문

根据CCD输出噪声的特点，CCD视频处理电路的目的是消除KTC噪声，抑制低频噪声和宽带白噪声。文中分析了三种抑制噪声的方法，相关双采样法、双斜积分法、开关指数滤波法。这三种方法都是在一象素周期内进行前后两次采样（或积分），系统的输出为两次采样之差，从而获得视频信号。文中不仅介绍它们的工作原理、推导噪声传输函数，而且详细分析各自的特性。最后对实际高频应用中最适合的相关双采样法进行细致分析。
근거CCD수출조성적특점，CCD시빈처리전로적목적시소제KTC조성，억제저빈조성화관대백조성。문중분석료삼충억제조성적방법，상관쌍채양법、쌍사적분법、개관지수려파법。저삼충방법도시재일상소주기내진행전후량차채양（혹적분），계통적수출위량차채양지차，종이획득시빈신호。문중불부개소타문적공작원리、추도조성전수함수，이차상세분석각자적특성。최후대실제고빈응용중최괄합적상관쌍채양법진행세치분석。
on properties of noise on the output signal of CCD, signal-processing schemes used to reduce the effect of KTC noise and to attenuate 1/f and broadband write noise are analysed. These schemes employ time delay and subtraction to eliminate KTC noise and attenuate 1/f noise. They also include a low-pass function to reduce the effect of broadband write noise. Signal processing schemes described in this paper are double-correlated sampling, dual-slope integration and switched exponential filtering. Each of these schemes' principle is discussed and presented, its transfer functions is deducted in this paper. Performance comparisons are given with emphasis on their applicability in high-speed CCD readout applications.