发明名称 |
CANCELLATION OF SPURIOUS INTERMODULATION PRODUCTS PRODUCED IN NONLINEAR CHANNELS BY FREQUENCY HOPPED SIGNALS AND SPURIOUS SIGNALS |
摘要 |
A method and apparatus for intermodulation product (IMP) cancellation. In one embodiment, the method comprises: acquiring copies of source signals that create IMPs in a passband of interest; creating copies of the IMPs for use as IMP cancellation signals by either multiplying the source signals together as a series of digital samples such that the multiplied signals create a near real and continuous time copy of the IMPs or creating a sum of the source signals in near real and continuous time and convolving the sum of the source signals with a mathematical model to effectively multiply the signals together to create a copy of the IMPs; adjusting one or both of phase and amplitude of the copies; and using the copies to cancel the IMPs inband of the passband of interest. |
申请公布号 |
US2016352369(A1) |
申请公布日期 |
2016.12.01 |
申请号 |
US201615165993 |
申请日期 |
2016.05.26 |
申请人 |
Smith Francis J. |
发明人 |
Smith Francis J. |
分类号 |
H04B1/10;H04L5/00 |
主分类号 |
H04B1/10 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
acquiring copies of source signals that create IMPs in a passband of interest; creating copies of the IMPs for use as IMP cancellation signals by either multiplying the source signals together as a series of digital samples such that the multiplied signals create a near real and continuous time copy of the IMPs or creating a sum of the source signals in near real and continuous time and convolving the sum of the source signals with a mathematical model to effectively multiply the signals together to create a copy of the IMPs; adjusting one or both of phase and amplitude of the copies; and using the copies to cancel the IMPs inband of the passband of interest. |
地址 |
Park City UT US |