Abstract: Aiming at the problem of binary offset carrier signal acquisition under low signal noise ratio conditions, a combined acquisition algorithm based on batch processing and TeagerKaiser (TK) operator is proposed. Firstly, the technologies of batch processing and averaging processing are applied for the received signals and combined spreading codes, and the technology of frequency domain multiple circular moving is applied for the received signals. Then, the optimal frequency offset compensation sequence and the combined spreading code take circular correlation operation to obtain a maximum correlation value. Finally, the ratio of the largest peak to the second largest peak is adopted as the threshold decision variable, and the detection probabilities based on TK operator method, differential correlation algorithm and original batch processing algorithm are compared. Simulation results show that, under the same conditions, the detection probabilities of the acquisition algorithm based on TK operator are improved, which is about 2 dB higher than those of the differential coherent accumulation algorithm, about 6 dB higher than those of 〖JP2〗the batch processing algorithm, and effectively〖JP〗 shortens the acquisition time.