摘要
为满足高速率卫星通信系统下接收端的高接收信噪比需求,设计了一种基于GPU的多天线组阵合成卫星信号的实现方法。基于全频谱合成的传统方案,加入数字下变频级联多相滤波的非均匀信道化模块,提升处理信号带宽内非均匀分布子信道的灵活性,并采用CPU+GPU异构平台进行高效实现。经仿真及实际信号测试,结果表明该设计相较传统CPU平台实现取得约10~20倍的加速比,为接收端的信号实时处理提供可能性。
A method for synthesizing satellite signals using GPU-based antenna arraying is designed to meet the high signal-to-noise ratio(SNR)requirements of a high-rate satellite communication system at the receiver.Based on the traditional approach of full-spectrum synthesis,a non-uniform channelization module with digital down-conversion and cascaded polyphase filtering is introduced to improve the flexibility in handling non-uniformly distributed sub-channels within the signal bandwidth.The implementation is performed on a heterogeneous CPU+GPU platform for high efficiency.Through simulations and actual signal tests,the results show that the proposed design achieves a speedup of approximately 10~20 times compared to a traditional CPU platform,providing the possibility of real-time signal processing at the receiver.
出处
《工业控制计算机》
2024年第1期76-78,共3页
Industrial Control Computer
关键词
多天线组阵
卫星信号
信号合成
GPU
并行设计
multi-antenna array
satellite signal
signal synthesis
GPU
parallel design
