OFDM Receiver CORDIC Module by Yun Chiu - PowerPoint PPT Presentation
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Title:
OFDM Receiver CORDIC Module by Yun Chiu
Description:
Data length of estimation of carrier freq. offset. 16. Can be up to 48. Critical path delay. 12.7 ns. 50 ns for 802.11a. Silicon area. 397080 um2. Total power ... – PowerPoint PPT presentation
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Title: OFDM Receiver CORDIC Module by Yun Chiu
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OFDM Receiver CORDIC Moduleby Yun Chiu
- OFDM systems are sensitive to RF carrier
frequency offset. - Needs symbol-by-symbol compensation.
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CORDIC Module Design Summary
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Module Block Diagram
- 2-Step offset correction.
- Estimation of I and Q offset coeff.
- CORDIC rotation.
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OFDM Waveform
Preamble
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CORDIC Module Performance(2ppm of 5GHz, 802.11a)
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CORDIC Module Performance(2ppm of 5GHz, 802.11a)
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CORDIC Module Performance(20ppm of 5GHz, 802.11a)
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CORDIC Module Performance(20ppm of 5GHz, 802.11a)
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