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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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traffic 2
说明： 实现主干道交通灯显示，以状态机程序实现，并用数码管进行红绿灯倒计时的显示，内置计数模块，交通灯控制模块，数码管显示模块，并对各模块用电路图的方式进行连接。对于学习VHDL语言有所帮助。(The main road traffic light display is realized by the state machine program, and the digital tube is used to display the traffic light countdown. The counting module, the traffic light control module and the digital tube display module are built in, and each module is connected by the circuit diagram. It is helpful for learning VHDL.)
- 2020-06-25 19:55:12下载
- 积分：1
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I2C-code
I2C总线协议 Verilog源代码.试过，没有错误！可以直接使用(I2C bus protocol Verilog source code. Tried, no errors! Can be used directly)
- 2013-06-03 10:54:17下载
- 积分：1
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HASH
hash加速器的verilog实现，也用于fpga或asic(hash verilog rtl )
- 2015-01-29 18:48:13下载
- 积分：1
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uart_test
用于实现上位机与下位机之间通过RS232协议来进行通讯。(It is used to realize communication between upper computer and lower computer through RS232 protocol.)
- 2019-03-13 14:15:24下载
- 积分：1
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32 bit shifter verilog fpga
应用背景32 位数字移位器，可用于乘法器的实现关键技术32位数字移位器，采用查招标的方式，基于FPGA和Verilog语言
- 2022-07-28 04:32:07下载
- 积分：1
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wp_max_flash
FPGA中FLASH配置控制源码,VHDL和Verilog(FPGA source code in the FLASH configuration control, VHDL and Verilog)
- 2007-12-11 15:57:15下载
- 积分：1
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vga_core
Code VHDL for control VGA
FPGA: Xilinx, Altera
- 2012-09-09 10:54:28下载
- 积分：1
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SASX
说明： Use of Kalman and EKF on two-phase permanent magnet synchronous motor of the state estimate CDCDCDCDCCC
- 2020-06-24 11:40:02下载
- 积分：1
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mipiTolvds
mipi转LVDS接口， verilog代码，在lattice 芯片上使用，已验证(MIPI to LVDS interface)
- 2018-07-06 20:19:54下载
- 积分：1
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