- Category:
- GPS develop
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- File Size:
- 8.49mb
- Update:
- 2015-03-23
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- Uploaded by:
- lvhenan
Description: DQPSK modulation and demodulation techniques for FPGA implementation of a more comprehensive study conducted by nQpSK modulation technique to achieve a code rate 20oKbps modulator. Modulated carrier frequency 3.2MHz, bandwidth 18oKHz, band rejection greater than 45dB, modulator design reaches the predetermined requirements. Demodulator hardware, the software is not fully realized, but the completion of the CIC filter, carrier tracking loop, bit timing synchronization, and converts the string design, and several other key modules. Demodulator do laboratory tests to verify the correctness of the design related modules, an important carrier demodulator synchronization has been able to achieve
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..........\goodgood基于FPGA的DMR系统4FSK调制解调的实现_陈磊.caj
..........\OK-基于FPGA的DQPSK调制解调器研究与设计_麦文.caj
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