Method for measuring time of arrival of signals in a radiolocation system based on the spread of DS-CDMA spectrum technique

摘要

the subject of the invention is how to measure the time for signals in the system based on the technique radiolokalizacyjnym dissipation spectrum ds - cdma, which is characterized by the fact that the signal generator generate in the model after spreading is filtered in the filter przedmodulacyjnym (fp), then headed to a set of n filters wszechprzepustowych about uu0142amkowym delay (fwl, fw2,...fwn), in which the delay of each nth filter is equal to (n - 1) - tc / n, where tc is the duration of one chip sequence diffuse. the number of currently used filter, containing information about time of arrival signals at the same time, ds - cdma, are chosen to obtain the maximum level of the signal collected for the cau0142kuju0105cym (uc).the subject of the invention is also a system for measuring time for signals in the system radiolokalizacyjnym based on dissipation spectrum ds - cdma technique characterized by that between the filter przedmodulacyjnym (fp), and the mnou017cu0105cym (um) is placed a set of n filters ws zechprzepustowych (fw), przeu0142u0105czanych switch (p), which is controlled by the decision-making system (ud).