This chapter discusses two models of optical information channel of holographic system: intensity model and amplitude model, and discusses some methods overcoming noises by use of these two models.
详细讲述了光信道的两种模型：光强度模型和光幅度模型，并利用这两种模型讨论了克服噪声的一些措施；
2
Measure of simultaneous-sampling twochannel signals sent from grating sensor, and soft-subdividing of moiré fringes in 200 based on simple system composed of DSP and MAX115 were introduced.
Hardware circuit design of the high speed multi-channel signal acquisition processing system based on VME and the PCI two kind of computers bus is the main part of this thesis.