针对高动态场景下大多普勒以及长时间积累引起的码片距离走动超过半码片周期，导致相干积累增益以及检测性能恶化的问题，本文提出了一种航天器微弱DS/FH测控信号长时间相干累积捕获技术，仅需要对码相关匹配矩阵进行扩展，然后基于0/1逻辑判断完成码片距离走动校正，与现有快速相干累积捕获技术的计算复杂度相当，同时显著提高了跳频相干积累增益以及检测性能。通过仿真分析验证，本文所提方法可有效解决高动态大多普勒和长时间积累场景下的相干积累增益和检测性能，为实际工程应用提供了重要的理论与实践价值。

In high-dynamic scenarios with large Doppler shifts and prolonged integration time, the code range migration often exceeds half a chip period, leading to significant degradation in coherent integration gain and detection performance. To address this issue, this paper proposes a long-time coherent integration acquisition technique for weak DS/FH (Direct Sequence/Frequency Hopping) telemetry, tracking, and command (TT&C) signals of spacecraft. The method requires only an extension of the code correlation matching matrix, followed by code range migration correction based on a 0/1 logic judgment. While maintaining computational complexity comparable to existing fast coherent integration acquisition techniques, it significantly enhances the coherent integration gain and detection performance of frequency-hopping signals. Simulation results comprehensively demonstrate that the proposed approach effectively mitigates the performance degradation caused by code range migration under high dynamics and large Doppler conditions, as well as validates its implementation feasibility, thereby offering substantial theoretical and practical value for real-world engineering applications.