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利用fpga实现的DDS，可输出正弦波，输出频率可调
利用fpga实现的DDS，可输出正弦波，输出频率可调-FPGA realization of the use of DDS, sine wave output, output frequency adjustable
- 2022-01-28 18:28:31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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dianyuan
saber的仿真模型，是一个电源的，经过调试已经成功(The simulation model of the saber, is a power, after commissioning has been successfully)
- 2012-04-06 12:17:23下载
- 积分：1
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arccos
一个求反余弦的cordic算法，整个工程。包括仿真。可以直接打开。(An inverse cosine of the cordic seeking algorithms, the whole project. Including the simulation. Can be directly opened.)
- 2009-11-04 22:48:00下载
- 积分：1
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verilog
数字信号除了的FPGA实现的Verilog源代码，之前发过一份是VHDL，各有所需吧，需要的看看吧(Digital signal in addition to the realization of the FPGA Verilog source code, send before a is VHDL, each have need it, need to look at it
)
- 2012-02-25 15:06:35下载
- 积分：1
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1_ADDER
说明： 第1例到第6例的源描述都是从第8例的程序包中
提取出来的,不能单独编译,这些例子的编译与
模拟请参考第8例.(Example No. 1 to the first six cases are the source described in Example 8 from the first package to extract it and can not be a separate compiler, which compiler and simulation examples please refer to the first eight cases.)
- 2008-09-09 18:00:16下载
- 积分：1
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i2c ADT75温度传感器
I2C温度传感器ADT75的控制源码 使用verilog 状态机实现 易入门-I2C for ADT75 temperature sensor
- 2022-02-14 14:53:33下载
- 积分：1
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低功率的可逆逻辑乘8
本文提出了一种新颖的可逆乘法器。可逆逻辑可以发挥重要作用
- 2023-01-29 11:35:03下载
- 积分：1
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数字计时器，使用VHDL语言编写，使用数码管显示，精确到ms
数字计时器，使用VHDL语言编写，使用数码管显示，精确到ms-digital timer, the use of VHDL development, the use of digital control, the precision of the ms
- 2022-05-20 00:23:22下载
- 积分：1
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QPSK
用Verilog语言实现QPSK调制，QPSK是一种数字调制方式。它分为绝对相移和相对相移两种。
(Verilog language using QPSK modulation, QPSK is a digital modulation. It is divided into absolute and relative phase shift of the phase shift of two.)
- 2011-01-24 17:46:44下载
- 积分：1
