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Description: ASP高级网 t=0:0.0000002:0.0006 ％ ts=0.2ms 每周期1000点
x1=sin(5000*2*pi.*t) ％ 生成5KHz的正弦波
b=fir1(9,0.01,hanning(10)) ％ 采样频率是100KHz，截止频率为500Hz的9阶汉宁窗生成b系数。
freqz(b,1,512,100000)
y=filter(b,1,x1) ％ 对5KHz正弦波用9阶汉宁窗进行滤波
plot(t,x1,t,y)
仿真结果未见到y被衰减的滤波效果。请高手指点。 络变成编程-ASP t = 0:0.0000002 : ts = 0.0006% per period 1000 EMFs point x1 = sin (5000 * 2 * pi. * t)% 5KHz generation of sine wave b = fir1 (9,0.01. HANNING (10))% is 100KHz sampling frequency, As the frequency of 500Hz nine bands Hanning window Generation b coefficient. Freqz (b, 1,512,100000) y = filter (b, a, x1)% to 5KHz sine wave with nine bands Hanning window filtering plot (t, x, t, y) Simulation results were not seen y attenuation of the filter effect. 19:56 guidance. Tongxinluo into programming
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Size: 71520 |
Author: 罗飞腾 |
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Description: 利用周期图法对序列的功率谱进行估计。数据窗采用汉明窗。假设在白噪声中分辨这三个不同频率的正弦信号,其相位是均匀分布在2PI的独立随机变量,而 是一个单位白噪声.生成50个长度为N=512的 的样本序列集合。
-use map cycle sequencing method of the power spectrum estimation. Data window using Hamming window. Assume that the white noise to differentiate between the three different frequency sinusoidal signal, its phase is uniformly distributed in the PI two independent random variables. but a flat white noise. Generating 50 length N = 512 samples of the sequence set.
Platform: |
Size: 896 |
Author: lee |
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Description: ASP高级网 t=0:0.0000002:0.0006 ％ ts=0.2ms 每周期1000点
x1=sin(5000*2*pi.*t) ％ 生成5KHz的正弦波
b=fir1(9,0.01,hanning(10)) ％ 采样频率是100KHz，截止频率为500Hz的9阶汉宁窗生成b系数。
freqz(b,1,512,100000)
y=filter(b,1,x1) ％ 对5KHz正弦波用9阶汉宁窗进行滤波
plot(t,x1,t,y)
仿真结果未见到y被衰减的滤波效果。请高手指点。 络变成编程-ASP t = 0:0.0000002 : ts = 0.0006% per period 1000 EMFs point x1 = sin (5000* 2* pi.* t)% 5KHz generation of sine wave b = fir1 (9,0.01. HANNING (10))% is 100KHz sampling frequency, As the frequency of 500Hz nine bands Hanning window Generation b coefficient. Freqz (b, 1,512,100000) y = filter (b, a, x1)% to 5KHz sine wave with nine bands Hanning window filtering plot (t, x, t, y) Simulation results were not seen y attenuation of the filter effect. 19:56 guidance. Tongxinluo into programming
Platform: |
Size: 71680 |
Author: 罗飞腾 |
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Description: vc的简单网络编程,windows下ping程序,功能强大-vc simple network programming under windows ping procedures, powerful
Platform: |
Size: 24576 |
Author: 杜 |
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Description: 利用周期图法对序列的功率谱进行估计。数据窗采用汉明窗。假设在白噪声中分辨这三个不同频率的正弦信号,其相位是均匀分布在2PI的独立随机变量,而 是一个单位白噪声.生成50个长度为N=512的 的样本序列集合。
-use map cycle sequencing method of the power spectrum estimation. Data window using Hamming window. Assume that the white noise to differentiate between the three different frequency sinusoidal signal, its phase is uniformly distributed in the PI two independent random variables. but a flat white noise. Generating 50 length N = 512 samples of the sequence set.
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Size: 1024 |
Author: lee |
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Description: 已知一个序列x(n)=0.5cos(0.55*pi*n)+cos(0.45*pi*n),时域FFT分析其频谱。
（1）使用不同宽度的矩形窗截断该序列为M点，取M分别为：20，40，160,观察不同长度对频谱影响；（2）使用哈明窗和凯泽窗重做；（3）对三种窗的结果进行分析比较；（4）总结窗类型和长度对频谱分析的影响。
-Known a sequence x (n) = 0.5cos (0.55* pi* n)+ Cos (0.45* pi* n), time-domain FFT analysis of its spectrum. (1) use a different width of the rectangular window of the sequence for M cut-off point, take M are as follows: 20,40,160, observing the impact of different lengths of the spectrum (2) the use of Hamming window and the Kaiser window redo (3 ) on the three windows analyzed and compared the results (4) summarize the type and length of window for spectrum analysis.
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Size: 1024 |
Author: fg |
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Description: 计算无理数PI前一千位的VB程序，左击窗口即可显示计算结果！-Calculation of irrational number PI 1000 before the VB program, hit the left window to display results!
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Size: 2048 |
Author: JinYao |
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Description: 哈明窗设计带通滤波器
低阻带边缘：0.3*pi ；
高阻带边缘：0.6*pi AS＝50dB；
低通带边缘：0.4*pi RP＝0.5dB；
高通带边缘：0.5*pi
-hamming window design a bandpass filter
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Size: 1024 |
Author: 王硕 |
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Description: 图形用户界面（GUI）演示常见的二维函数图形。菜单条中含有5个菜单项：Plot、Option、LineStyle、Color和Quit。Plot中有Sine Wave、tsin(3t) Wave、2*exp(-0.5*x).*cos(pi*x) Wave、四页玫瑰曲线、阿基米德螺旋曲线和心形曲线六个子菜单项，分别控制在本图形窗口画出相应曲线。-Graphical user interface (GUI) shows the common two-dimensional graphics functions. Menu bar contains five menu items: Plot, Option, LineStyle, Color, and Quit. Plot of a Sine Wave, tsin (3t) Wave, 2* exp (-0.5* x) .* cos (pi* x) Wave, 4 rose curve, Archimedes spiral curve and the heart-shaped curve of the six sub-menu items were controlled in the graphics window to draw the corresponding curve.
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Size: 1024 |
Author: lx |
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Description: 利用JNI技术实现java对window API的调用进而得到windows操作系统的所有进程信息。-Java using JNI technology and then on the window API calls to get all the windows operating system process information.
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Size: 2646016 |
Author: 大麦哥 |
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Description: 用窗函数设计FIR数字滤波器。参数设置为：阶数 N=84，通带截止频率Wc=0.4*Pi，通频带为低通。-FIR digital filter design with window function. Parameter is set: the order of N = 84, passband, the passband of the low-pass cutoff frequency of Wc = 0.4* Pi,.
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Size: 2048 |
Author: 岳崇毅 |
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Description: （附带有文档，文档中有方案，有程序有结果，设计完后对一段语音进行处理）给定滤波器的规一化性能指标（参考指标,实际中依据每个同学所叠加噪声情况而定）通带截止频率wp=0.25*pi。 采用窗函数法设计低通、高通、带通型FIR滤波器，对叠加噪声前后的语音信号进行滤波处理，绘出滤波器的频域响应，绘出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；在相同的性能指标下比较各方法的滤波效果，并从理论上进行分析-(With the document, document, program, program results, the design after a voice) to set the filter rules of performance indicators (reference, practice, each student adding noise may be) passband cutoff frequency wp = 0.25* pi. Window function method to design low pass, high pass, band-pass FIR filter, filtering the voice signal before and after adding noise, draw the filter frequency response plot the time-domain waveform and spectrum of the filtered signal, and filtering the signal before and after comparison and analysis of signal changes the filtering effect of the various methods in the same performance indicators, and the theoretical analysis
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Size: 276480 |
Author: smilence |
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Description: 设计一个阻带下限0.45*pi 阻带上限0.8*pi
通带下限0.55*pi 阻带上限0.7*pi
通带衰减0.15dB，阻带衰减40dB，分别用汉宁窗汉明窗凯瑟窗布莱克曼窗设计滤波器，对比分析各方法优劣-Design a stop-band limit 0.45* pi stopband limit 0.8* pi
Passband lower limit 0.55* pi stopband limit 0.7* pi
Passband attenuation 0.15dB, stop-band attenuation of 40dB, respectively Hanning Hamming window Kaiser window Blackman window filter design, comparative analysis of the pros and cons of each method
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Size: 11264 |
Author: 徐睿 |
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Description: Pi马的一个简单例子 1.可以偷窥到对方的桌面内容，按设置的时间进行刷新. 2.可以用鼠标控制对方的电脑，包括所有的鼠标操作. 3.可以使用键盘控制对方的电脑，几乎可用所有的按键. 4.在客户端可以建立多个窗口，对多台电脑进行监视控制. 5.可以运行一条命令,例如打开一个记事本. 6.可以锁定/解锁对方的电脑. 7.可以让对方电脑(强行)注销/重启/关机. 8.可以传送/删除/移动对方的电脑上的文件. 9.在必要时还可以关掉服务程序. 10.增加了自动发信的功能，在连接Internet后会发送电脑IP地址. 11.可以保存配置. 12.可以对传送的图像进行压缩,压缩算法有LZW(推荐)、LZ77、LZSS等. 13.可以指定获得桌面的颜色数目，有单色、16色、256色和真彩,以保证在可以桌面图像更新的速度要求. -an example of PiLoader1. Can be peeping into the contents of each other s desktop. 2. Can use the mouse to control the other computer. 3. You can use the keyboard to control the other computer. 4. The client can create more window. 5. can run a command. 6. can lock/unlock each other s computer. 7. will allow the other computer (forced) write-off/restart/shutdown. 8. can send/delete/move each other s computer documents. 9. where necessary, can also turn off the service program. 10. an increase of automatic letter functions. 11. configuration can be saved. 12. can send the image compression
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Size: 58368 |
Author: libguestfs |
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Description: 自从物联网 [IoT]兴起后,许多开发商都致力于特定用途的云端平台开发, Ubidots 就是专门针对传感器接收的云端平台,他可将感测的讯息透过 [web hook] [E-mail] [简讯] 通知相关人员,因为不必花时间在 Ubidots 端写程序,只需做相关触发条件的设定,所以十分好用。
User 只要在支持 Python的任何系统 (window linux IOS),将 IO 所感测的数值传送至 ubidots 云端平台,它即可将讯息通知相关人员 以下网址范例是在树莓派写一python程序将它的 Cpu, Memory, Disk 状态传送至 ubidots 云端平台, 同时在平台设定 memory 使用百分比,若超过设定值即可传送简讯至特定人员。
-Since things [IoT] rise, many developers are committed to the cloud platform for a particular purpose, Ubidots received by the sensor is specifically for cloud platform, he can be sensed messages through [web hook] [E-mail] [ SMS] notify the relevant personnel, because you do not spend time at the end Ubidots writing program, simply do the relevant set trigger conditions, it is very easy to use. User support any system as long as the Python (window linux IOS), the IO sensed values transmitted to ubidots cloud platform, it will be a message to notify the relevant personnel examples are the following URL in the Raspberry Pi write a python program its Cpu, Memory, Disk status is passed to ubidots cloud platform while the platform set memory usage percentage, if it exceeds the set value to send an SMS to a specific person.
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Size: 517120 |
Author: slim |
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Description: 实现了对10个数字音的识别，复化三点Gauss-lengend公式求pi，窗函数法设计一个数字带通FIR滤波器。- To achieve the recognition of 10 digital sound, Complex of three-point Gauss-lengend the Formula pi, A window function design FIR digital band-pass filter.
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Size: 4096 |
Author: 阚小管 |
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Description: 电力系统暂态稳定程序，可以进行暂态稳定计算,窗函数法设计一个数字带通FIR滤波器，复化三点Gauss-lengend公式求pi。- Power System Transient Stability Program, can be transient stability, A window function design FIR digital band-pass filter, Complex of three-point Gauss-lengend the Formula pi.
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Size: 4096 |
Author: stdapbb |
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Description: 复化三点Gauss-lengend公式求pi，窗函数法设计一个数字带通FIR滤波器，有信道编码，调制，信道估计等。- Complex of three-point Gauss-lengend the Formula pi, A window function design FIR digital band-pass filter, Channel coding, modulation, channel estimation.
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Size: 7168 |
Author: jenggengkao |
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Description: 设计一个FIR数字滤波器，设计一个线性FIR滤波器（Kaiser window）Wp = 0.3π; Ws = 0.4π; As = 40dB;(We design a FIR digital filter, design a linear FIR filter (Kaiser window), Wp = 0.3 PI, Ws = 0.4 PI, As = 40dB;)
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Size: 1024 |
Author: JosephKerr |
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