N-delta and differential average signal processors: detailing of their signal and noise response

A detailed and complete derivation of the impulse response (and transfer function) for the most commonly used charge-coupled-device (CCD) output signal processing techniques is presented. A basic mathematical model is discussed for 2- delta double sampling and is then generalized to n-sample systems. The method is adapted to show how the impulse response for the differential averaging technique is derived. The relationship between n- delta and differential average is illustrated mathematically. Simple signal gain derivations using the previously derived impulse responses are given. White, 1/f, and 1/f/sup 2/ noise power are discussed in light of the derivation. Graphs illustrating the noise dependence of both n- delta and differential average processor types are included.<
>