Low-orbit navigation signal coding method, equipment and medium

The invention discloses a low-orbit navigation signal encoding method and device and a medium, and the method comprises the following specific steps: configuring a polynomial parameter and an original information length parameter of a viterbi encoder, and determining an original information input framing; a start control signal is determined according to the original information input framing, and the start control signal is sent to a CRC24Q encoder and a viterbi encoder; a byte look-up table method is adopted to calculate CRC24Q codes, bytes are adopted to calculate viterbi codes, and the CRC24Q codes and the viterbi codes are subjected to parallel calculation; and obtaining a calculated coding value, and storing the coding value. According to the method, an algorithm of calculating according to bytes is adopted for viterbi coding, so that the coding speed is increased, the speeds of the two kinds of coding can be matched, an RAM buffer does not need to be input any more, and the channel coding speed of the