Method for suppressing PAPR of improved TR based on MIMO-OFDM

• Main Authors: ZHOU SHENGHUA, CAO YUNHE, DAI FENGZHOU, XIA XIANGGEN, FENG HONGXIAO, WU WENHUA
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The present invention discloses a method for suppressing PAPR of an improved TR based on MIMO-OFDM. The main idea of the method is: obtaining an OFDM signal, obtaining a frequency domain sequence of the OFDM signal, and performing phase modulation to obtain a phase modulated frequency domain sequence of the OFDM signal; obtaining M groups of uniformly staggered frequency domain sequence, subjecting the M groups of uniformly staggered frequency domain sequence to the inverse discrete Fourier transform, and then calculating the PAPR of the OFDM time domain signals of M transmitting antennas of MIMO radar to obtain the reserved subcarrier vectors on the M transmitting antennas of the MIMO radar; and setting a peak eliminating signal, obtaining the optimal solution of the M transmitting antennas of the MIMO radar according to the reserved subcarrier vectors on the M transmitting antennas of the MIMO radar, and then calculating a time domain continuous signal which is the PAPR suppression result of the improved TR