Methods and systems for interference estimation via quantization in spread-spectrum systems

摘要

A method for interference estimation and mitigation includes receiving a high-resolution digital signal. The high-resolution digital signal comprises a signal of interest and an interfering signal. An estimate of the interfering signal is generated using a quantizer. The signal of interest is in a quantization noise of the quantizer. An interference-mitigated signal of interest is generated based on a difference of the estimate of the interfering signal and the high-resolution digital signal.

主权项

1. A method for interference estimation and mitigation, the method comprising:
receiving a high-resolution digital signal, wherein the high-resolution digital signal comprises a signal of interest and an interfering signal, and wherein the high-resolution digital signal is generated based on an analog-to-digital converter; quantizing the high-resolution digital signal in a quantizer, wherein the signal of interest is in a quantization noise of the quantizer; generating an estimate of the interfering signal at the quantizer and outputting the estimate of the interfering signal from the quantizer, wherein a resolution of the analog-to-digital converter is higher than a resolution of the quantizer; and generating an interference-mitigated signal of interest based on a difference between the estimate of the interfering signal and the high-resolution digital signal.