DS-SS serial search code acquisition in time-variant channel

The serial search DS code acquisition in time-variant channel is analyzed. The stationary random signal amplitude is supposed to be constant during each single/multiple dwell test interval and independent of that on any other test interval. The dependence of the acquisition time PDF as well as its mean value on the random amplitude is eliminated by averaging over the given amplitude distribution. As an example of the general concept application the mean acquisition time of the double-dwell coherent detector at Rayleigh distributed signal amplitude is evaluated.