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Unified DC offset cancellation and I/Q regeneration with carrier phase recovery in five-port junction based direct receivers

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4 Author(s)

This paper presents a novel unified DC offset cancellation and I/Q regeneration for five-port junction based direct receivers. It utilizes the symmetry characteristics of the single-frequency continuous-wave (CW) signal, making it possible that the proposed method can be used regardless of carrier phase offset. The proposed method eliminates the additional DC offset cancellation operation and reduces the parameter estimation time for I/Q regeneration. Since the proposed method employs a single-frequency CW signal independent of the modulation scheme, five-port junction based direct receivers with the proposed method can be used for the demodulation of orthogonal frequency-division multiplexing and continuous phase modulation as well as phase shift-keying.

Published in:

Microwave Conference, 2007. European

Date of Conference:

9-12 Oct. 2007