Loading...
| Friend's email | |
| Your name | |
| Your email | |
| enter code | |
This page was sent successfuly
- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 53774 (05)
- University: Sharif University of Technology
- Department: Electrical Engineering
- Advisor(s): Movahedian, Hamid
- Abstract:
- The goal of this project, has been designing a downhole camera, which captures images from environment of a well and transmits that to the surface. High temperature and pressure of well environment and corrosion and limitation in data transmission rate which is because of mono conductor cable, are the challenges of designing this system. For doing that, first, the principles of image compression are explained. Then, based on that, an image compression system based on wavelet transform has been designed. Its components are examined too. For making the introduced system resistant to the high pressure and temperature, using an isolated case is suggested. For implementation, an encryption/decryption system has been used. So, the works that has been done in the compression part are eliminating the encryption/decryption part and changing the algorithm of receiving and transmitting video, from encoder to decoder based on the project’s need. For designing and simulation of modem part, OFDM details are discussed first. The purpose of using this modulation is using the bandwidth of channel efficiently and reaching to the maximum transmission rate. In the next step with the theory basis, an OFDM simulation in MATLAB has been carried out. The results are also presented. Finally, with capability of MATLAB in generating HDL codes, required resources for implementing this modem on FPGA is mentioned
- Keywords:
- Image Compression ; Wavelet Transform ; Encoder ; Decoder ; Modulation and Demodulation ; Image Transferring
Digital Object List
-
محتواي کتاب
- view
Bookmark