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binary_mod_demod
二进制数字调制解调方式,包括2ASK,2FSK,2PSK等,有图形(Binary digital modulation and demodulation, including 2ASK, 2FSK, 2PSK so, graphics)
- 2010-08-24 13:16:27下载
- 积分:1
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ipqr
a modified interior method for linear regression is described in a very simple matlab program
- 2009-12-23 22:14:38下载
- 积分:1
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Signal_Processing
1.产生正弦信号,方波信号,均匀噪声;
2.信号的叠加;
3.信号的相关分析;
4.信号的卷积;
5.信号的和;
6.信号的频谱图。(1. Generate sine signal, square wave signals, uniform noise
2. Signal superposition
3. The signal correlation analysis
4. The convolution of signal
5. The sum of signal
6. The signal spectrum.)
- 2013-07-13 21:50:22下载
- 积分:1
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偶极子
说明: 通过matlab仿真偶极子声场的指向性,在极坐标下作图画出指向性(The directivity of dipole sound field is simulated by MATLAB, and the directivity is drawn in polar coordinates)
- 2021-01-06 21:18:54下载
- 积分:1
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Mesh2dv23
Mesh2d is a MATLAB toolbox designed to automatically generate quality 2D
unstructured triangular meshes based on linear geometry inputs.
- 2010-12-18 06:20:08下载
- 积分:1
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xqljbx
一种传输线线受雷击后的计算方法,很使用的,做毕业设计必看(a transmission line by line after the Lightning calculation method is used, do graduate design Watchable)
- 2006-08-01 09:47:52下载
- 积分:1
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B1C信号的调制
说明: BOC调制的Matlab程序仿真及Simulink模型(Matlab program and BOC modulation simulation model of Simulink)
- 2021-04-17 19:18:52下载
- 积分:1
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基于FPGA的特征值检测算法认知无线电
研究认知无线电系统已经吸引了很大的兴趣,在过去的10年。认知无线电出生作为范例,从那以后这个想法已经从技术上看到的贡献不同的概念层下的学科。从那以后改进的处理能力一直支持目前的成就,甚至成为可能,移动其中一些来自研究领域市场。认知无线电意味着革命,甚至要求改变现有的商业模式,在基础设施层面的变化,在立法的变化和先进的国家需要技术。频谱感测是可能的认知无线电系统中最重要的部分,因为它是块设计成检测在空气存在的信号。本文探讨了什么认知无线电系统需要,着眼于频谱感知装置。根据不同的正交频分运行两个语音应用复用(OFDM)方案进行选择。这些是WiFi和无线麦克风。然后,一循环平稳频谱感知技术的研究和应用,以确定能够在设备在嘈杂的环境中检测OFDM信号。其中最有趣的方法,在的复杂性和计算需求,被称为FAM术语显影。研究性能和频率同步的结果被示出,包括开发对频偏估计盲同步技术。
- 2022-03-01 16:43:29下载
- 积分:1
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Clutter-Filtering-
。给出了时域滤波的基本原理以及通常采用的
IIR 椭圆地物杂波滤波器的设计方法。重点研究了回归滤波器这一时域滤波算
法。从正交多项式的拟合出发,给出了回归滤波器抑制地物杂波的基本原理及
其滤波实现过程。通过对回归滤波器的计算复杂度的研究,寻找使回归滤波器
计算量最小的正交多项式。分析了回归滤波器频率响应特性,比较了回归滤波
器与IIR 椭圆地物杂波滤波器的计算复杂度。利用仿真的雷达信号,分析了回
归滤波器的地物杂波抑制性能。回归滤波器实际上是一高通滤波器,它在滤掉
低频地物杂波的同时,对落在滤波器阻带内的天气回波信号同样会造成衰减。
在天气回波信号谱宽固定的情况下,通过改变天气回波信号的平均多普勒频率,
分析了回归滤波器对它的衰减情况。在基于一组实际采集的雷达信号的基础上,
给出了回归滤波器的地物杂波抑制比随着滤波器阶数的变化情况。(Firstly, this dissertation introduces the research background and significance of
ground clutter suppression, analyzes the characteristics of the ground clutter and
weather signals in the Doppler weather radars and simulates Doppler radar echo
signals (It includes ground clutter, weather echo signals and the mixture of them).
The simulated signals are used later to study the time and frequency domain ground
clutter suppression.
Secondly, this dissertation talks about the time domain filtering, gives the basic
theory of time domain filtering and describes the design method of the usually used
fifth-order elliptic infinite impulse response (IIR) ground clutter filter. In the time
domain, the work focuses on the regression filter. From the orthogonal polynomials
fit, this dissertation gives the basic theory of the regression filter for ground clutter
suppression and the filtering process using a regression filter. Through the study of
the computational complexity of regression)
- 2012-07-09 22:12:11下载
- 积分:1
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mypwe
2D PWM Photonic crystal source code
- 2013-12-03 17:34:30下载
- 积分:1