| 发明名称 |
LOW COMPLEXITY NARROWBAND INTERFERENCE SUPPRESSION |
| 摘要 |
In one embodiment a method for suppressing narrowband interference in an RF signal is provided. The method includes providing a block of baseband digital samples of the RF signal and computing n-1 stages of an n stage fast Fourier transform (FFT) on the block of the baseband digital samples to produce a first block of intermediate data points. A final threshold is computed based on values of the intermediate data points. A final stage of the n stage FFT is computed from the first block of intermediate data points to produce a block of output data points, and the output data points that have an energy above the final threshold are attenuated. |
| 申请公布号 |
US2015304150(A1) |
申请公布日期 |
2015.10.22 |
| 申请号 |
US201414254649 |
申请日期 |
2014.04.16 |
| 申请人 |
Digi International Inc. |
发明人 |
Schaffner Terry Michael |
| 分类号 |
H04L27/26 |
主分类号 |
H04L27/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for suppressing narrowband interference in a radio frequency (RF) signal being received, the method comprising:
providing a block of baseband digital samples of the RF signal; computing n-1 stages of an n stage fast Fourier transform (FFT) on the block of the baseband digital samples to produce a first block of intermediate data points; computing a final threshold based on values of the intermediate data points; computing a final stage of the n stage FFT from the first block of intermediate data points to produce a block of output data points; and attenuating the output data points that have an energy above the final threshold. |
| 地址 |
Minnetonka MN US |
