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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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PESQ
关于pesq的一些论文，对我最近的一些研究帮助很大，希望对你们有用(some useful about the document of the pesq)
- 2015-11-02 14:18:10下载
- 积分：1
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vc-cpp
c语言实现，能够输入和查询客户存款取款记录。在客户文件中，每个客户是一条记录，包括编号、客户姓名、支取密码、客户地址、客户电话、账户总金额；在存取款文件中，每次存取款是一条记录，包括编号、日期、类别、存取数目、经办人。类别分为取款和存款两种。本系统能够输入客户存款或取款记录；根据客户姓名查询存款和取款记录。(c language, be able to enter and query the records of customer deposit withdrawals. , Each customer is a record in the customer file, including the number, customer name, withdraw the password, the customer address, customer phone account the total amount in the deposit file, each deposit is a record, including the number, date, category, access the number of managers. The categories are divided into two kinds of withdrawals and deposits. The system can enter the customer deposits or withdrawals records their deposits and withdrawals recorded according to the customer' s name.)
- 2012-06-26 00:26:45下载
- 积分：1
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roaddetection
是一个描述道路检测以及粒子滤波的ppt文件，希望能给大家一些启发。
- 2009-09-17 19:28:23下载
- 积分：1
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washingmachineexamplewithPLC
washing machine application in PLC
- 2009-05-12 21:22:53下载
- 积分：1
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AUV-motion-control-system-design
自主水下机器人运动控制系统设计，word文件，有图有公式，比较不错！(Autonomous underwater robot motion control system design, word documents, there are pictures and formulas, quite good!)
- 2021-03-17 15:19:20下载
- 积分：1
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IGBT_LOSS
这是我根据英飞凌手册编写的IGBT损耗分析软件，软件显示计算公式，用于损耗评估(This is my according to IGBT loss Infineon manual writing and analysis software, the software shows the calculation formula, used to evaluate the loss
)
- 2013-08-24 18:04:59下载
- 积分：1
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openrd_documentation
这个是我从国外购买的marvell 88f6281 开发板的文档资料。这个是1.5G主频的带双千兆网的ARM芯片。性能很高。
- 2011-09-22 10:15:51下载
- 积分：1
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CMOS摄像头的智能监控系统
介绍了一种基于低成本CMOS摄像头的智能监控系统,实现了现场监控的实时化、智能化。系统可自动判别危险程度,可分别提供绿色、黄色和红色报警信息,并驱动相关附属设备工作。针对图像传输过程中的噪声,系统采用了对噪声图像使用局部算子的滤波技术来提高图像质量。根据对静态图像进行三原色分离后误差域的研究,达到背景与图像分离的目的,成功实现了图像的获取和处理。在低成本投入下,以简单的配置和简便的操作达到了高性能监控系统的功能。(Introduce a low-cost CMOS camera-based intelligent monitoring system, realize the scene in real-time monitoring and intelligent. The system can automatically determine the degree of risk, they can provide green, yellow and red alarm information, and drive the work-related ancillary equipment. For image transmission in the process of noise, system noise images of the use of local filtering operator technology to improve image quality. Based on static images RGB domain after the separation error research, background and images to achieve the purpose of separation, the successful implementation of the image acquisition and processing. Input in the low-cost, simple configuration and easy to operate to achieve a high-performance monitoring system.)
- 2008-07-11 19:58:43下载
- 积分：1
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DDCFPGA
针对DVB-T标准ETSI EN 300 744 V1.5.1,设计了可用于DVB-T接收整机的多速率DDC模块,并在FPGA中仿真实现.在复用数字振荡混频模块的基础上,根据输入信号的不同带宽(6M/8MHz)选择不同的抽取滤波器组完成抽取因子为3或4的多速率处理任务,利用两级半带滤波器(HBF)级联完成4倍抽取滤波,单级奈奎斯特滤波器完成3倍抽取滤波. (For the DVB-T standard ETSI EN 300 744 V1.5.1, designed for DVB-T receiver machine multi-rate DDC module, and the simulation in the FPGA implementation. Numerical oscillation in the complex mixer module, based on the input signals of different bandwidths (6M/8MHz) choose a different group of complete decimation filter extracted factor 3 or 4 of the multi-rate processing tasks, using two half-band filter (HBF) cascade to complete four times decimation filter, single-stage Chennai Nyquist filter to complete three times the decimation filtering.)
- 2009-09-13 22:24:41下载
- 积分：1
