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The study is a consideration of the PSK-n signal passage through a tuned resonant filter with a limited bandwidth. It is shown that the capacity is limited in the absence of noise and in the presence of intersymbol interference.
The paper presents a new method for estimating capacity of real communication channel in the absence of noise when PSK-n signals are used under conditions of strong intersymbol distortion caused by transient processes in selective systems of a linear radio path. The presented method has high accuracy and low computational complexity, which does not depend on the number of discrete states of the PSK-n...
The results of laser system positioning units and details development in aircraft are presented. The installation accuracy is no more than 5 microns. This accuracy is reached by means of the square photoreceiver. The test results of the device on benches of the Kazan aircraft industrial corporation are adduced.
The results of distance laser meter development for different industrial needs are presented. The accuracy of distance measurement of the introduced system was 1-2 mm. That accuracy is obtained by means of converter of time intervals.
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