Title: PSK Modulation and Demodulation Experiment Report Introduction In this experiment, we explored the principles and applications of Phase Shift Keying (PSK) modulation and demodulation. PSK is a digital modulation scheme that conveys data by changing the phase of the carrier wave. It is widely...
The signal processing device using this mode consists of four delay lines with different acoustic phase delays on a substrate and possesses three functions: phase shifter, phase comparator, and filter. Experimental results are presented for the Lamb wave device for QPSK modulation and demodulation, ...
DEMODULATION DEVICE, QUADRATURE MODULATION SIGNAL DEMODULATION METHOD, AND RADIO COMMUNICATION DEVICE PROBLEM TO BE SOLVED: To allow a quadrature modulation signal to be demodulated at a lower processing frequency.SOLUTION: A demodulation device comprises: an acquisition unit 5 that acquires a sample sign...
ofdesignandhasbeenwaveformsimulatedonMaxplus2developedbyAltera.“TOP-TO-DOWN”isthemainfeatureofthisdesign. ThewholeprogramhaspassedthehardwaredebuggingonCPLDexperimentexploitationboardwhichtakesEPM7128SLC84-7tobe themainchip. Keywords:ModulationandDemodulation、CPLD、VHDL 1引言 现代通信系统要求通信距离远、通信...
This experiment set up by 2PSK coherent demodulation and 2DPSK differential coherent demodulation performance of them to carry on the analy 4、sis, finally finds the 2DPSK performance is superior to that of 2PSK due to the removal of the phenomenonKeywords Coherent demodulation; Differential ...
modulationanddirectdetection,at40Gb/s,severalmodulationformatsanddetection techniqueshavebeenproposed. Inthispaper,wefocusonthetransmissionreachwhichcanbeobtainedwiththem,outoftheirrobustnessto non-lineareffects,whiletheircomplexity/cost,theirtolerancetoPMD,andtonodecrosstalkhavebeenorwillbe reportedelsewhere.Inorder...
smallest reach reduction, in order to continue to benefit from the extension of optical transparency in their networks. While at 10Gb/s, terrestrial WDM systems use almost unanimously non-return to zero (NRZ) intensity modulation and direct detection, at 40Gb/s, several modulation formats and ...
to overcometheshortcomingsofPSKcoherentcarrier recovery180 degreesin thecarrierphase ambiguity.Thisexperimentset up by 2PSK coherent demodulationand2DPSK differential coherent demodulationperformance of themto carry on the analysis, finally finds the 2DPSK performance is superior to that of2PSK due to the...
Title PSK system modulation design based on MATLAB AbstractIt is full costly to large-scale,complicated system's directly experiment,but adopting emulation experiment could far and away scale experiment cost down. At practice communication ,a great many channel can't be able to directly transmit ...
Thisexperimentsetupby2PSKcoherentdemodulationand2DPSKdifferential coherentdemodulationperformanceofthemtocarryontheanalysis,finally findsthe2DPSKperformanceissuperiortothatof2PSKduetotheremovalof the"π"phenomenon KeywordsCoherentdemodulation;Differentialcoherentdemodulation; The"π"phenomenon1引言 随着通信技术的日益迅速...