Title :
N-delta and differential average signal processors: detailing of their signal and noise response
Author_Institution :
Martin Marietta Civil Space & Commun., Denver, CO, USA
fDate :
1/1/1993 12:00:00 AM
Abstract :
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-δ 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-δ and differential average is illustrated mathematically. Simple signal gain derivations using the previously derived impulse responses are given. White, 1/f , and 1/f2 noise power are discussed in light of the derivation. Graphs illustrating the noise dependence of both n-δ and differential average processor types are included
Keywords :
analogue processing circuits; charge-coupled device circuits; random noise; semiconductor device models; semiconductor device noise; signal processing equipment; transfer functions; transient response; white noise; 1/f noise; 1/f2 noise power; 2-δ double sampling; CCD; charge-coupled-device; correlated double sampling; differential average signal processors; impulse response; mathematical model; n-delta signal processors; n-sample systems; noise dependence; noise response; output signal processing; signal gain; signal response; transfer function; white noise; Charge coupled devices; Circuit noise; Circuit topology; Equations; Mathematical model; Process design; Signal processing; Signal sampling; Transfer functions; Transversal filters;
Journal_Title :
Solid-State Circuits, IEEE Journal of
