Spectral density of noise in CCDs
1978
Good agreement between theory and measurements is obtained for the spectral density of transfer noise which is the dominant noise source in a SCCD. Within a frequencyband small compared to the baseband of the CCD the achievable signal-to-noise ratio S/N is limited by the noise power in that small frequency range and not by the mean square value. Our considerations show that the spectral density of noise power of a CCD is inverse proportional to the clock frequency f C . Therefore increasing f C improves the S/N-ratio and enhances the performance of the CCD in band-limited analog communication systems.
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