rls算法及其仿真.docVIP

智能天线RLS算法及其仿真 摘要 近年来，随着移动通信的飞速发展，如何尽可能的对抗衰落和干扰、提高频谱利用率、在保证通信质量的前提下扩大系统的容量成为一个很有挑战性的课题。在充分发掘时域、频域、 码域资源后，人们把目光转向使用空域资源的智能天线。智能天线对无线通信系统的影响是革命性的，值得投入大量的精力去研究。它是在阵列天线的基础上使用自适应波束形成算法，不同于以前使用的天线，智能天线不是全向的，它把覆盖面分为几个扇区，分别在各个扇区中使用以前就已经在使用的时分多址、频分多址、码分多址技术，由于使用了自适应算法，所以可以以获得更高的载干比，降低发射功率，减少干扰的同时也增加了系统容量。智能天线波束形成 关键词：阵列天线，智能天线，自适应波束形成算法，RLS算法 RLS algorithm and its simulation of smart antenna Abstract In recent years, with the rapid development of mobile communication, how to combat fading and interference as possible, to improve spectrum utilization in the premise of ensuring the quality of communication to expand system capacity to be a very challenging task. Fully explore the time domain, frequency domain, code domain resources, the people turn to use the airspace resources, smart antenna. Smart antennas for wireless communication system is revolutionary, it is worth putting in a lot of energy to study. It is based on the use of antenna array adaptive beamforming algorithm, different from the previously used antenna, smart antenna is not omnidirectional, it is divided into several sectors to cover, in various sectors were already in use before use TDMA, frequency division multiple access, code division multiple access technology, the use of the adaptive algorithm, so can get a higher carrier to interference and reduce the transmission power to reduce interference also increases the system capacity. Smart antenna covers the following two aspects: First, beamforming, and second, DOA estimation (DOA), DOA estimation introduced in this paper do not do. Digital adaptive beamforming smart antenna core, is to determine the most important factor in system performance. Adaptive beamforming algorithms have a good variety, root authorities would need to show that the training sequence, can be divided into non-blind algorithm for blind algorithm. This article on the antenna array and smart antennas to do a comprehensive introduction to, and then to non blind RLS algorithm algorithms in