ALGORITHM FOR PROCESSING SPACE-TIME SIGNALS BASED ON THE MIMO-OFDM SYSTEM UNDER ACTIVE INTERFERENCE

Abstract

An algorithm for processing space-time signals based on a MIMO-OFDM communication system in the presence of active interference is described. Theoretical calculations are given, the detection of approaches that often cause the bandwidth of the communication channel when leaving a point source of active interference. The task is relevant in the conditions of dense urban development, as well as the steadily growing need to improve noise immunity and communication quality without bandwidth coverage. To process information in a MIMO-OFDM system without interference, engineers mainly use the criterion of maximum signal-to-noise ratios, however, in the presence of active interference, the Wiener criteria. It measures the minimum RMS pilot measurement communication channel with and without adaptation using the Wiener criterion and the presence of interference with two types of modulation (QAM-4, BPSK). The results show that the adaptation improves the BER (bit error rate) state along the entire line of the curve and for all SNRs. The developed algorithm can be used for communication and control systems of unmanned aerial vehicles in the presence of active interference. error in OFDM. In this case, a signal receipt of a monetary amount, an eigenvector is detected, weight processing is performed, a signal is received that occurs according to the minimum error criterion. An orthogonal frequency division multiplexing technology with pilot subcarriers is reduced at the receive frequency in frequency and modulation code. Thresholding was found in the decrypted code, produced by the RMS comparison. The arrival of big money comes from this own number. Pilot-based enumeration searches for the minimum acceptable error. The eigenvector of the found signal will be for weight processing. Experiments are carried out to detect a signal in a