To provide a method for limiting an error correction ability without using a value like a syndrome.SOLUTION: A transmitting device 20 transmits to a rail R a transmission signal in which given transmission information has undergone error correction code processing and modulation. A receiving device 40 demodulates a reception signal received from the rail R to generate a reception word, further performs error correction decoding processing to generate reception information, and compares match of each bit between an assumed code word generated from the reception information and the reception word. The receiving device uses a result of the comparison to determine whether to adopt the reception information. For example, it is determined that the reception information is adopted when the number of mismatched bits satisfies a predetermined tolerance condition.SELECTED DRAWING: Figure 2
【課題】シンドロームのような値を用いずに、誤り訂正能力を制限する方法を実現すること。【解決手段】送信装置20は、所与の送信情報を誤り訂正符号処理及び変調した送信信号をレールRに送信する。受信装置40は、レールRから受信した受信信号を復調して受信語を生成し、さらに誤り訂正復号処理して受信情報を生成し、この受信情報から生成した想定符号語と受信語との各ビットの一致を比較する。この比較結果を用いて受信情報を採用するか否かを判定する。例えば、不一致ビット数が所定の許容条件を満たす場合に受信情報を採用すると判定する。【選択図】図2
RECEIVING DEVICE, ON-VEHICLE DEVICE, AND RECEIVING METHOD
受信装置、車上装置及び受信方法
2023-08-30
Patent
Electronic Resource
Japanese
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