SPREAD spectrum MODULATION TECHNIQUES -spread spectrum - those modulation methods that are producing a signal whose spectrum is more wider than of the data signal, the occupied frequency band being independent by the signal of data band. -The signals with spread spectrum of direct sequence type BPSK (BPSK-DS-SS) -The signals with spread spectrum of direct sequence type QPSK – DS–SS - Frequency hopping spread spectrum signals (FH-SS)
標簽： MODULATION TECHNIQUES modulation spectrum
上傳時間： 2017-06-05
上傳用戶：lht618
TIME HOPPING SPREAD spectrum SIGNALS (ULTRA WIDE BAND SIGNALS) - UWB SIGNAL DESCRIPTION - THE UWB TRANSMITTER - THE UWB RECEIVER
標簽： SIGNALS DESCRIPTION UWB spectrum
上傳時間： 2014-01-06
上傳用戶：duoshen1989
Spread-spectrum techniques are methods by which electromagnetic energy generated in a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety of reasons, including the establishment of secure communications, increasing resistance to natural interference and jamming, and to prevent detec
標簽： Spread-spectrum electromagnetic techniques particular
上傳時間： 2017-06-06
上傳用戶：royzhangsz
consider the power and spectrum
標簽： consider spectrum power and
上傳時間： 2017-07-02
上傳用戶：894898248
This is an pdf file for information on spread spectrum.
標簽： information spectrum spread This
上傳時間： 2014-01-19
上傳用戶：wweqas
spectrum DIGITAL INCORPORATED公司的5509A DSK開發板原理圖
標簽： INCORPORATED spectrum DIGITAL 5509A
上傳時間： 2013-12-26
上傳用戶：四只眼
this file has codes that describes how to ccmpute the signal spectrum , the power spectrum, how to calculate the autocorrelation sequence of a signal, how to calculate the autoregressive coeffecients of a signal,and how to reduce the noisy elements in a speech sample.
標簽： spectrum describes how the
上傳時間： 2017-07-23
上傳用戶：金宜
power spectrum, just input the signal....
標簽： spectrum signal power input
上傳時間： 2017-07-28
上傳用戶：JasonC
The radially averaged power spectrum (RAPS) is the direction-independent mean spectrum, i.e. the average of all possible directional power spectra. This function computes and plots the RAPS of an input image. The function was written to produce the RAPS for square weather radar reflectivity images so you will have to relabel the plot axes and title to suit your needs. The radially averaged power spectrum provides a convenient means to view and compare information contained in 2D spectra in 1D
標簽： spectrum direction-independent i.e. the
上傳時間： 2013-12-17
上傳用戶：watch100
This paper presents an overview of mobile WiMAX technology and discusses the key role of spectrum analysis for ensuring reliable systems’ operation and deployment
標簽： technology discusses overview presents
上傳時間： 2013-12-24
上傳用戶：yyq123456789
