摘要
针对实数信号提出了一种基于DCT-IV的余弦调制信道化技术。采用余弦调制滤波器组完成多相滤波,结合DCT-IV的快速算法实现信道化。与相关文献相比避免了复数运算,提高了计算效率,通过实例仿真结果验证了该技术的有效性。
A cosine modulated channelization based on DCT-IV for real-valued signals is introduced. Cosine modulated filter banks(CMFB) are adopted, to implement multi-phase banks, and a DCT-IV fast algorithm is proposed to complete channelization. Compared with other literatures, the new method avoids complex-value computation, and improves the efficiency. Simulation results confirm its validity.
出处
《信息工程大学学报》
2009年第4期498-501,共4页
Journal of Information Engineering University
基金
科研基金资助项目