下載電子全文宣告This thesis is authorized to indicate in-campus access only
You can not download at the moment.
Your IP address is 220.127.116.11
The defense date of the thesis is 2004-07-16
The current date is 2017-09-23
This thesis will be accessible at off-campus not accessible
URN etd-0716104-120728 Statistics This thesis had been viewed 1395 times. Download 18 times. Author Ming-cheng Chen Author's Email Address No Public. Department Communication Engineering Year 2004 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 79 Title The Studies of Discrete Interpolation in the Compensation of Rayleigh Fading Keyword none none Abstract There are many problems occurred in wireless communications destructing the signals transmitted. Fading is one of the main problems to affect the transmitting signals, hence the fading compensation is the most important problem to be solved especially in high-speed mobile communication.
Pilot symbol-assisted modulation (PSAM) is an effective scheme used to solve fading problems providing good effect to recover the destructed signals to the original ones. PSAM uses the pilots to estimate the fading effect and remove the estimated fading effect and then the signals will be recovered. There are many kinds of interpolation methods to estimate the fading curve, and using discrete-time sine transform (DST) is effective and simple.
The boundary effect by discontinuously of the two ends of the points due to the period extend characteristic of the FFT could reduce the accuracy of the evaluation in original paper. We can translate the data by a given equation and make the two ends of the points become continuous before DST. The DST method match the boundary match, so it need not to doanything more for boundary match.
We simulated the data through AWGN and Rayleigh fading channel then using method of DST to recover original signals in different environment parameters. We found using method of DST interpolate to recover the original signal is good in the communication model.
Advisor Committee Chau-yun Hsu - advisor
Jie-chereng Liu - co-chair
none - co-chair
Files Date of Defense 2004-07-13 Date of Submission 2004-07-16