A Study on Carrier Frequency Recovery Methods for a Direct Sequence Spread Spectrum Receiver in a Multipath Fading Channel
碩士 === 國立交通大學 === 電信研究所 === 83 === In designing a mobile radio communication system, we first need to know the characteristics of the associated communication channel. High vehicle speed causes large Doppler frequency...
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| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
1995
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| Online Access: | http://ndltd.ncl.edu.tw/handle/78433434689680266463 |
| Summary: | 碩士 === 國立交通大學 === 電信研究所 === 83 === In designing a mobile radio communication system, we first
need to know the characteristics of the associated
communication channel. High vehicle speed causes large
Doppler frequency shift and may end up in loose lock of
frequency in a mobile radio receiver. This thesis focuses on
the design of carrier frequency recovery methods for a direct
sequence spread spectrum receiver in a multipath fading
channel for mobile radio communications. We propose two
methods for carrier frequency recovery, one is a lineari zed
squaring loop (SL) and the other is an automatic frequency
control (AFC) loop. We compare these two methods from both
theoretic and simulation points of view.
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