In this paper, a new method is introduced to implement chaotic generators based on the Henon map and Lorenz chaotic generators given by the state equations using the Field Programmable Gate Array (FPGA). The aim of this method is to increase the frequency of the chaotic generators. The new method is based on the MATLAB® Software, Xilinx System Generator, Xilinx
Alliance tools and Synplicity Synplify.
This software is developed to provide ease with controller design. For PID control, options are given
to design and analyse the compensated and uncompensated system. You are free to choice among Proportional
PI, PD and PID mode of control. Both frequency and time domain characteristics can be observed. Special
Menus are given to observe time and frequency response plots. For Statefeedback controller similar options
are given. But this is limited to second order system only.
This sample program generates two sine waves called X and Y.
It will then calculate the normalized magnitude and phase of
the two waveforms using the following formulas:
Mag = sqrt(X^2 + Y^2)/sqrt(GainX^2 + GainY^2)
Phase = (long) (atan2PU(X,Y) * 360)
The program will prompt the user to change the gain and
frequency of the X and Y waveforms.
gmsk modulation of numerical data generated by a random source, the output of the modulator give two signals, the first is gmsk signal and the other is gaussien frequency pulse shape
This is an example program showing how to use the LMX2326 chip. The program configures the chip and then prompts the user for a channel number. When the channel number is entered, the pll tunes to the desired frequency.
Abstract—We describe a technique for image encoding in which local operators of many scales but identical shape serve as the basis functions. The representation differs from established techniques in that the code elements are localized in spatial frequency as well as in space.
本系統(tǒng)分電壓測(cè)量和信號(hào)產(chǎn)生輸出兩大部分，電壓測(cè)量部分以模擬電路為主，配合放大模塊、A/D轉(zhuǎn)化模塊、顯示模塊；通過凌陽單片機(jī)進(jìn)行數(shù)據(jù)處理，在誤差允許范圍內(nèi)顯示測(cè)量電壓值。信號(hào)產(chǎn)生以直接數(shù)字式頻率合成器(Direct Digital frequency Synthesis,簡(jiǎn)稱DDS或DDFS)為核心，經(jīng)過AT89S52對(duì)DDS芯片內(nèi)部進(jìn)行控制，使之輸出標(biāo)準(zhǔn)正弦波形，利用編程實(shí)現(xiàn)頻率預(yù)置、步進(jìn)，達(dá)到電壓輸出頻率的可調(diào)節(jié)步進(jìn)。通過調(diào)試與測(cè)量完成了題目的基本部分和全部發(fā)揮部分的要求并有自己的創(chuàng)新
The function applies the Madsen method for Doppler Centroid estimation. The input are:
1) the raw data, the parameter of the distance between samples in azimuth to be correlated and the PRF (Pulse repetition frequency)
Title : Implementation of quadrature modulation and demodulation
Design Object : By implementing quadrature modulation and demodulation of analog signals in digital signal processing, students will have better understanding of sampling and frequency analysis of discrete-time signals.
Design Content : Make a MATLAB function which performs quadrature modulation and demodulation for a input signal with anti-aliasing filtering.
The UMTS Physical Layer model consists of an end-to-end (transmitter-to-receiver) simulation of the frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
