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Description: ZLG7290键盘检测及 LED 显示示例
ZLG7290是一种I2C接口键盘及LED驱动管理器件，提供数据译码和循环、移位、段寻址等控制。它可
采样64个按键或传感器，单片即可完成LED显示、键盘接口的全部功能。ZLG7290的从地址为70H，器件内
部通过I2C总线访问的寄存器地址范围为00H~17H，任一寄存器都可按字节直接读写，并支持自动增址功能
和地址翻转功能。
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Size: 161828 |
Author: yjj |
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Description: ZLG7290键盘检测及 LED 显示示例
ZLG7290是一种I2C接口键盘及LED驱动管理器件，提供数据译码和循环、移位、段寻址等控制。它可
采样64个按键或传感器，单片即可完成LED显示、键盘接口的全部功能。ZLG7290的从地址为70H，器件内
部通过I2C总线访问的寄存器地址范围为00H~17H，任一寄存器都可按字节直接读写，并支持自动增址功能
和地址翻转功能。-ZLG7290 keyboard detection and LED display ZLG7290 example I2C interface is a keyboard and LED-driven management devices, providing data decoding and recycling, displacement, paragraph addressing such control. It can be sampling 64 keys or sensors, to complete single-chip LED display, full function keyboard interface. ZLG7290 from address 70H, the internal device through the I2C bus to visit the register address range of 00H ~ 17H, any register can be directly read and write by byte, and to support automatic function and address of the site by flip function.
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Size: 161792 |
Author: yjj |
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Description: 基于FFT的快速SAR分布目标回波模拟算法.
大面积分布目标的合成孔径雷达(SAR)回波模拟需要大量的运算，文中提出了一种合成孔径雷达回波模拟的快速算法，算法利用时域插值和FFTl’来缩减运算量，对于大面积目标回波模拟时，该算法有很高的效率。文中详细分析sinc函数插值所带来的误差以及补偿方法，并在次基础上提出了一种利用增采样插值方法，该方法以增加少量运算为代价，使得模拟精度的大幅度提高。文中比较了传统方法和基于FFTl’的快速SAR分布目标回波模拟算法的模拟结果，证明了这种快速算法确实行之有效。-The simulation of distributed targets is very important to the design of synthetic aperture radar(SAR)sys-
tems．Since the end product is SAR images，the echo of SAR signals needs to be simulated and then processed form SAR images，an d the parameters needs to be measured and the perform ance of the images should be，an d then evaluated．The designing parameters of SAR could be adjusted to meet the requirement of users before developing SAR systems，specially
in space—bome SAR systems．Th e simulation data is also needed during the developing an d debugging of a space—borne SAR real—time processor．Another purpose of simulation is to supply a great deal of simulation imag es to train image usors of space—bo rne SAR before it launch．
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Size: 320512 |
Author: nico |
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Description: 用Remez算法设计一个低通滤波器；设计一个5路5:1多相减采样滤波器和一个4路1:4多相增采样滤波器。-Remez algorithm with a low-pass filter designed by a 5-way multi-phase sampling filter and 5:1 4 1:4 a multi-phase sampling filter increases.
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Size: 9216 |
Author: 孙聚芳 |
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Description: 当信号采样点数很少时，不能很好的恢复原模拟信号，导致原始信号中的一部分丢失。而当信号的采样点数增多到1024时，其分辨率很好，可以有效的区分信号的信息，当采样点数继续增多时，其恢复为原始模拟信号的精度越高且不丢失原始信号。-When the signal is small when the sampling points can not be good to restore the original analog signal, causing part of the original signal is lost. When the signal is increased to 1024 sampling points, its resolution is very good, can effectively distinguish the signal information, continue to increase when the sampling points, its back to the higher accuracy of the original analog signal without loss of the original signal.
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Size: 1024 |
Author: lengjingjing |
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Description: 减采样实例
增采样实例
线性插值实例
改变采样率实例-Reduce the sampling instance
By sampling instance
Linear interpolation examples
Instance of changing the sampling rate
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Size: 5120 |
Author: txbj |
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Description: 信号分析-增采样、减采样、改变采样率实例-Signal Analysis- by sampling, by sampling, an instance of changing the sampling rate
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Size: 2048 |
Author: lihui |
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Description: 演示用多相分解法实现增采样，说明使用窗函数对冲激响应序列进行截取的必要性。
Platform: |
Size: 1327 |
Author: 88610748@qq.com |
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Description: 针对基于贝叶斯原理的序贯蒙特卡罗粒子滤波器出现退化现象的原因, 以无敏粒子滤波(U PF)、辅助粒子滤波
(A S IR) 及采样重要再采样(S IR) 等改进的粒子滤波算法为例, 对消除该缺陷的关键技术(优化重要密度函数及再采样) 进行了
分析研究。说明通过提高重要密度函数的似然度、引进当前测量值、预增和复制大权值粒子等方式, 可以有效改善算法性能。
最后通过对一无源探测定位问题进行仿真, 验证了运用该关键技术后, 算法的收敛精度和鲁棒性得到进一步增强。- Abstract:W e analyze the degeneracy phenomenon of sequen t ialMon te Carlo part icle f ilters based on
bayesian theo rem , pu t focu s on the key techn iques ( good cho ice of impo rtance den sity and u se of
resamp ling ) to reduce it s effect s. Several imp roving schemes such as the U n scen ted Part icle F ilters
(U PF) , the A ux iliary Samp ling Impo rtance Resamp ling (A S IR ) and the Samp ling Impo rtance Resamp ling
(S IR ) algo rithm s are in t roduced to illu st rate th rough increasing the likelihood of the impo rtance den sity o r
inco rpo rat ing new measu remen t, o r rep licat ing part icles w ith large w eigh t s w ith in the generic f rame of
part icle f ilters, the convergence accu racy and robu stness behavio rs of the algo rithm can be effect ively
imp roved. A typ ical passive detect ion and locat ion p rob lem is simu lated to p rove above conclu sion s.
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Size: 297984 |
Author: Haiser |
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Description: 一个用VHDL自行编写的完整可行的增采样系统，仅供参考-VHDL with a self-preparation of a complete and feasible by sampling system, for reference only
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Size: 1832960 |
Author: 龙 |
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Description: 对栅格数据进行压缩或放大，对像元进行合并或增扩。(raster data resample.)
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Size: 336896 |
Author: 叁枽
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Description: DSP matlab 增采样仿真 定点数量化等(DSP matlab simulation of futher sampling)
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Size: 3072 |
Author: jason_ning
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