The invention provides a
signal detection method, device and equipment and a readable storage medium, and relates to the technical field of communication, and the method comprises the steps: obtaining a
signal transmitted by a
signal transmitting end, and demodulating the signal to obtain a log-likelihood ratio, the signal being obtained by coding with a Reed-Muller code; decoding is carried out according to the log-likelihood ratio, a decoding result and a first correlation value and a second correlation value in the decoding process are obtained, and the first correlation value and the second correlation value are used for representing the difference between code words in the decoding process; obtaining a log-likelihood ratio error index according to the decoding result and the log-likelihood ratio; according to the log-likelihood ratio error index, the first correlation value and the second correlation value, a detection value is obtained, and the detection value is used for representing whether the signal is an expected signal or not. According to the scheme, whether the received
signal coding mode is the Reed-Muller code or not can be determined.