UC知道高分求一段汉译英，用软件直接翻译的勿扰。
来源：百度知道 编辑：UC知道 时间：2024/05/30 14:44:44
通常，空间信号的测向上主要是进行一维波达方向（DOA）估计。而在实际应用中，常常要同时对信号的多个参数进行联合估计，如信号DOA、俯仰角以及频率等。本文首先分别介绍了用于空间二维谱估计的MUSIC算法、ESPRIT算法的基本思想和算法原理，然后着重讲述了基于两种算法的方位-频率二维谱估计。接着本文利用MATLAB语言分别用MUSIC算法和ESRPIT算法实现二维估计，并对计算机仿真结果进行分析比较。
本文首先介绍了有关射频识别技术的概念、兴起和发展。结合射频识别系统的基本结构和原理，描述了收发天线的工作原理及过程。随后分析了发射功率、芯片接收功率、芯片消耗功率以及接收天线接收的回波功率之间的关系；并详细探讨了芯片接收功率和接收天线接收的回波功率随工作距离的变化关系，以及决定这些功率大小的因素，为实际中射频识别硬件设计提供参考数据
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With the development of science and technology, now in many areas of need to know the exact direction of useful signal, the frequency of parameters, the precise measurement of the signal to put a very high demand. Spectrum space technology in many areas has been widely used, and array signal processing plays a very important role.
Often, the signal space is measured up to one direction Wei Boda (DOA) estimates. In practical applications, often at the same time to signal the number of parameters of the estimates, such as signal DOA, pitch angle and frequency. This paper first introduced for the two-dimensional space spectrum of the estimated MUSIC algorithm, ESPRIT algorithm for the basic idea and principle of algorithm, and then focus on the two algorithms based on the position - two-dimensional frequency spectrum estimation. Then this paper were used MATLAB language MUSIC algorithm and ESRPIT algorithm estimated two-dimensional and computer simulation results are analyzed and