Implementation of Channel Estimation Methods for DVB-T System on PACDSP Platform
碩士 === 國立交通大學 === 電機學院IC設計產業專班 === 97 === PACDSP is a digital signal processor developed by ITRI STC. Its special architecture and instructions can support highly parallel operations. It is suitable for various kinds of multimedia applications and can implement the associated multimedia algorithms e...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2009
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| Online Access: | http://ndltd.ncl.edu.tw/handle/05770726813447916675 |
| Summary: | 碩士 === 國立交通大學 === 電機學院IC設計產業專班 === 97 === PACDSP is a digital signal processor developed by ITRI STC. Its special architecture and instructions can support highly parallel operations. It is suitable for various kinds of multimedia applications and can implement the associated multimedia algorithms efficiently. In this thesis, we implement the channel estimation methods for DVB-T system on PACDSP platform. Channel estimation can be roughly divided into two kinds: time-invariant channel estimation methods and time-variant channel estimation methods. We investigate several interpolation methods for time-invariant channel estimation and propose an effective channel estimation method with low complexity. We implement the channel estimation methods on PACDSP platform. We also analyze the execution cycle numbers and the memory requirement of the channel estimation methods. Since PACDSP spends a lot of execution cycles on division operation required by channel estimation, we propose some effective methods to reduce the execution cycles for division operations on PACDSP. Finally, we propose some design suggestions for PACDSP.
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