RECEIVING DEVICE, TRANSMITTING/RECEIVING SYSTEM, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM

• Main Author: KAMIYA NORIFUMI
• Format: Patent
• Language: English; Japanese
• Published: 02.12.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION

To provide a receiving device, a transmitting/receiving system, a signal processing method, and a signal processing program capable of achieving both reduction in peak power and reduction in a transmission rate.SOLUTION: A receiving device includes a receiving processing unit (410A) that receives a transmission signal from a transmission device that performs precoding processing and clipping processing on the transmission signal and simultaneously outputs a plurality of transmission signals within the same frequency band, a signal separation unit (420A) that separates the received data set from the transmission signal by performing inverse transformation of the precoding processing on the transmission signal, and a transmission signal estimation unit (440A) that estimates a signal distortion component and a noise component due to clipping processing and interference components between transmission signals on the basis of the received data set and gain information on the transmission path through which the transmission signals are transmitted, and estimates a transmission data set by removing the estimated signal distortion component, the interference component, and the noise component from the received data set.SELECTED DRAWING: Figure 7 【課題】ピーク電力の低減と、伝送レートの低下とを両立可能な受信装置、送受信システム、信号処理方法、及び信号処理プログラムを提供する。【解決手段】送信信号に対してプリコーディング処理及びクリッピング処理を行い、複数の送信信号を同一周波数帯域内において同時出力する送信装置から送信信号を受信する受信処理部（４１０Ａ）と、送信信号に対してプリコーディング処理の逆変換を行うことにより、受信データセットを送信信号から分離する信号分離部（４２０Ａ）と、受信データセットと送信信号が送信される伝送路に関する利得情報とに基づいて、クリッピング処理による信号歪成分及び雑音成分と、送信信号同士の干渉成分とを推定し、推定した信号歪成分、雑音成分及び干渉成分を前記受信データセットから除去することにより、送信データセットを推定する送信信号推定部（４４０Ａ）と、を備える。【選択図】図７