论文标题
通过最小化ISL度量的快速迭代算法仅设计阶段序列
A Fast Iterative Algorithm to design phase only sequences by minimizing the ISL metric
论文作者
论文摘要
单型/相位的序列仅具有脉冲，例如Aperiodic自动相关函数，在雷达，声纳，密码学和无线（CDMA）通信系统的应用中起着核心作用。在本文中，我们提出了一种快速的迭代算法，通过最小化集成的侧室水平（ISL）度量来设计任意长度的阶段，该序列与序列的自动相关属性密切相关。 ISL最小化问题通过使用多数化最小化（MM）技术迭代解决，从而确保单调收敛到固定最小点。为了强调提出的算法的性能，我们使用不同的初始化进行了不同序列长度的数值实验，并将它们与现有算法进行比较。数值模拟表明，无论序列长度和初始化如何，就收敛速度而言，所提出的算法的性能优于最先进的算法。我们还展示了一种通过使用FFT和IFFT操作来实现我们提出的算法的计算有效方法。
Unimodular/Phase only sequence having impulse like aperiodic auto-correlation function plays a central role in the applications of RADAR, SONAR, Cryptography, and Wireless (CDMA) Communication Systems. In this paper, we propose a fast iterative algorithm to design phase only sequences of arbitrary lengths by minimizing the Integrated Side-lobe Level (ISL) metric, which is very closely related to the auto-correlation property of a sequence. The ISL minimization problem is solved iteratively by using the Majorization-Minimization (MM) technique, which ensures a monotonic convergence to the stationary minimum point. To highlight the performance of a proposed algorithm, we conduct the numerical experiments for different sequence lengths using different initializations and also compare them with the existing algorithms. Numerical simulations show that irrespective of the sequence length and initialization, the proposed algorithm is performing better than the state-of-the-art algorithms in terms of speed of convergence. We also show a computationally efficient way to implement our proposed algorithm by using the FFT and IFFT operations.
