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ULA
已知：信号中心波长为2,天线阵元的间距为1米,快拍数为2000，空中有四个
源信号,假设它们的频率
四个源信号的方向分别为：
求：
1）在不加入噪声的情况下,观察并计算协方差矩阵特征值,并对它的特点
加以说明
2）分别采用MUSIC算法,CAPON算法, ESPRIT算法在下面四种情况下，对
上述四个信号源的波达方向进行估计,并画出它们的空间谱图；
①在不加入噪声的情况下,
②在加入高斯白噪声的情况下,假设信噪比为10dB
3）在信噪比变化范围为-20dB~+20dB时，分别采用MUSIC算法,CAPON算
法, ESPRIT算法，对上述四个信号源的波达方向进行估计,并画出波达方
向估计误差,随着信噪比变化的曲线图(即横轴为信噪比,纵轴为误差值)()
- 2008-07-01 16:10:08下载
- 积分：1
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AP
说明： 基于AP的火电厂烟气含氧量多模型建模(原始)(Thermal power plant flue gas oxygen content multiple modeling (original) AP-based)
- 2016-10-09 10:36:56下载
- 积分：1
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power-bank
充电宝的电路图，给想自己动手的同学们用来学习借鉴(the circuit of power bank)
- 2013-01-30 14:31:24下载
- 积分：1
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AGV-zongshu
AGV各种综述性论文，包括各种导引方式,激光导引，超声波导引等固定路径和非固定路径导引(AGV variety of review papers, including a variety of guidance, laser guidance, such as ultrasonic guidance fixed path and a fixed route guidance)
- 2015-12-22 14:38:52下载
- 积分：1
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program
折实计算机专业的课程设计报告，很完整很详细的哦(Folding is a computer professional curriculum design report, complete a very detailed Oh)
- 2008-06-27 15:54:00下载
- 积分：1
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Switching-Power-Supply-Design
开关电源设计,英语写的书第三版，作者是Abraham I. Pressman, Keith Billings, Taylor Morey
(Switching power supply design, the third edition of the book written in English, of Abraham I. Pressman, Keith Billings, Taylor Morey)
- 2020-09-08 16:48:02下载
- 积分：1
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3-level-NPC-voltage-source-PWM-inverters
A comprehensive study of neutral-point voltage balancing problem in three-level neutral-point-clamped voltage source PWM inverters.
- 2011-09-07 14:26:09下载
- 积分：1
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NEW_FHT
快速Hartley变换(简称FHT)的一种新算法(Fast Hartley Transform A new algorithm)
- 2010-11-23 19:35:24下载
- 积分：1
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ZhenDong
基于MATLAB的振动信号采集与分析系统的研究，研究生毕业论文(MATLAB-based vibration signal acquisition and analysis system, post-graduate thesis)
- 2009-06-04 11:47:45下载
- 积分：1
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TheDesignof35kVGridRelayprotection
本压缩包 包含 任务书、论文以及答辩ppt，虽说是课程设计，但是按照毕业设计书写，内容充实
本次课程设计主要是对象湖变的电网进行保护整定，对d1至d6共6个地方进行了最大方式与最小方式运行情况下的短路电流计算。计算完短路电流后，对L1至L5共5条线路进行电流保护整定。但是由于线路较短，线路阻抗较小。经计算后均不适合三段式电流保护。所以采取了纵联差动保护作为主保护，定时限过电流保护作为后备保护。对于变压器，采用纵联差动保护与气体保护共同作为主保护，过负荷保护作为后备保护。(The curriculum design is the object variable grid lake protection setting of D1 to D6, 6 places for the maximum and minimum operation mode under the condition of short-circuit current calculation. Calculation of short-circuit current after the end, L1 to L5 a total of 5 lines of current protection setting. But because of shorter lines, line impedance is small. The calculations are not suitable for three phase current protection. So take a longitudinal differential protection as the main protection, timing and limiting current protection as a back-up protection. For transformers, using longitudinal differential protection and gas protection as the main protection, overload protection as a back-up protection.)
- 2012-03-06 16:26:36下载
- 积分：1
