发明名称 |
Polar receiver architecture and signal processing methods |
摘要 |
Compressing a variable phase component of a received modulated signal with a second harmonic injection locking oscillator, and generating a delayed phase-compressed signal with a fundamental injection locking oscillator, and combining the phase-compressed signal and the delayed phase-compressed signal to obtain an estimated derivative of the variable phase component, and further processing the estimated derivative to recover data contained within the received modulated signal. |
申请公布号 |
US8804875(B1) |
申请公布日期 |
2014.08.12 |
申请号 |
US201313925080 |
申请日期 |
2013.06.24 |
申请人 |
Innophase Inc. |
发明人 |
Xu Yang;Munoz Hermoso Sara |
分类号 |
H03D3/18;H04L27/227 |
主分类号 |
H03D3/18 |
代理机构 |
Invention Mine LLC |
代理人 |
Invention Mine LLC |
主权项 |
1. A method comprising:
receiving a modulated signal having a variable phase component wherein the variable phase component includes phase variations in a first phase range; generating a phase-compressed signal having a compressed variable phase component by processing the received modulated signal with a second-harmonic injection locking oscillator (ILO), wherein the compressed variable phase component includes phase variations in a compressed phase range being substantially one half the first phase range; generating a delayed phase-compressed signal having a delayed compressed variable phase component that is delayed relative to the compressed variable phase component; combining the phase-compressed signal and the delayed phase-compressed signal to obtain an estimated derivative of the variable phase component; generating an estimated variable phase component signal by filtering the estimated derivative of the variable phase component; and, providing the estimated phase signal to a polar demodulation circuit. |
地址 |
Chicago IL US |