초록 ▼

A wideband interference suppression system comprises at least one signal conditioning device receiving at least one input signal having a signal of interest portion and an interference signal portion, wherein the at least one signal conditioning device is adapted to provide selective, independent, a

A wideband interference suppression system comprises at least one signal conditioning device receiving at least one input signal having a signal of interest portion and an interference signal portion, wherein the at least one signal conditioning device is adapted to provide selective, independent, and variable control of one of a phase, a time delay, an amplitude, a radio frequency signal division, and a radio frequency signal summation of the at least one input signal to produce a modified signal. A tunable cross correlator receives a signal representative of the modified signal and is adapted to estimate one of an amplitude, a time delay and a phase delay parameter of the interference signal portion and to generate a control logic signal therefrom, wherein the control logic signal is received by the at least one signal conditioning device for independently and selectively activating and adjusting the various components thereof to suppress the interference signal portion.

대표청구항 ▼

1. A wideband interference suppression system, comprising: a first signal conditioning device for receiving a first input signal having a first signal of interest portion and a first interference signal portion, wherein the first signal conditioning device is adapted to provide selective, independen

1. A wideband interference suppression system, comprising: a first signal conditioning device for receiving a first input signal having a first signal of interest portion and a first interference signal portion, wherein the first signal conditioning device is adapted to provide selective, independent, and variable control of at least one of a phase delay, a time delay, an amplitude, a radio frequency signal division, and a radio frequency signal summation of the first input signal to produce a first modified signal;a second signal conditioning device for receiving a second input signal having a second signal of interest portion and a second interference signal portion, wherein the second signal conditioning device is adapted to provide selective, independent, and variable control of at least one of a phase delay, a time delay and an amplitude of the second input signal to produce a second modified signal; and a tunable cross correlator for receiving;the first modified signal, the tunable cross correlator adapted to estimate one of the amplitude, time delay and phase delay parameters of the first interference signal portion and to generate a first control logic signal therefrom, wherein the first control logic signal causes the first signal conditioning device to selectively adjust the at least one of the amplitude, the time delay and the phase delay of the first interference signal portion to suppress the first interference signal portion; andthe second modified signal, the tunable cross correlator adapted to estimate at least one of the amplitude, time delay and phase delay parameters of the second interference signal portion and to generate a second control logic signal therefrom, wherein the second control logic signal causes the second signal conditioning device to selectively adjust the at least one of the amplitude, the time delay and the phase delay of the second interference signal portion to suppress the second interference signal portion; wherein, the tunable cross correlator is configured to determine at least one of: a relative amplitude difference between the first and second interference signal portions; a relative time delay difference between the first and second interference signal portions; and a relative phase delay difference between the first and second interference signal portions;the first control logic signal and the second control logic signal are adjustable to equalize at least one of the amplitude and the time delay of the first and second interference signal portions; and the first control logic signal and the second control logic signal are adjustable to set the phase delay of the first interference signal portion 180 degrees out of phase with the second interference signal portion to cancel the first interference portion with the second interference portion in a power combiner. 2. The wideband interference suppression system of claim 1, further comprising a power combiner for receiving and combining the first and second modified signals to generate an output signal. 3. The wideband interference suppression system of claim 2, wherein the first control logic signal is adjusted by the tunable cross correlator to maximize a signal to interference and noise ratio in the output signal. 4. The wideband interference suppression system of claim 1, wherein the first and second control logic signals are adjusted by the tunable cross correlator to maximize a signal to interference and noise ratio in an output signal. 5. A wideband interference suppression method, comprising: receiving a first input signal, wherein the first input signal includes a first signal of interest portion and a first interference signal portion; evaluating at least one of a phase delay, an amplitude, and a time delay of the first interference signal portion with a tunable cross correlator;generating a first control logic signal;adjusting a first signal conditioning device based on the first control logic signal to provide selective, independent, and variable control of the at least one of the phase delay parameter, the amplitude parameter, and the time delay parameter of the first interference signal portion to generate a first modified signal;receiving a second input signal, wherein the second input signal includes a second signal of interest portion and a second interference signal portion;evaluating at least one of a phase delay, an amplitude, and a time delay of the second interference signal portion using the tunable cross correlator, and determining at least one of: a relative amplitude difference between the first and second interference signal portions; a relative time delay difference between the first and second interference signal portions; and the relative phase delay difference between the first and second interference signal portions;generating a second control logic signal;adjusting a second signal conditioning device based on the second control logic signal to provide selective, independent, and variable control of the at least one of the phase delay, the amplitude, and the time delay of the second interference signal portion to generate a second modified signal;combining the first and second modified signals to form an output signal; andadjusting the first and second control logic signals to maximize a signal to interference and noise ratio in the output signal, equalizing at least one of the amplitude and the time delay of the first and second interference signal portions, and adjusting the phase delay of the first interference signal portion 180 degrees out of phase with the second interference signal portion to cancel the first interference portion with the second interference portion in the combining step. 6. The wideband interference suppression method of claim 5, wherein the evaluating step further comprises estimating one of the phase delay, the amplitude, and the time delay of the first interference signal portion. 7. The wideband interference suppression method of claim 5, wherein the evaluating step further comprises estimating the phase delay, the amplitude, or the time delay required for suppressing the first interference signal portion of the first signal. 8. A wideband interference suppression system, comprising: a first signal conditioning device configured to receive: a first input signal having a signal of interest portion and an interference signal portion; anda first control logic signal including logic for independently and selectively activating and adjusting the first signal conditioning device;wherein, the first signal conditioning device is configured to provide selective, independent, and variable control of at least one of a phase delay, a time delay, and an amplitude of the first input signal to produce a first modified signal;a second signal conditioning device configured to receive: a second input signal having the signal of interest portion and the interference signal portion; anda second control logic signal including logic for independently and selectively activating and adjusting the second signal conditioning device;wherein, the second signal conditioning device is configured to provide selective, independent, and variable control of at least one of a phase delay, a time delay, and an amplitude of the second input signal to produce a second modified signal; anda tunable cross correlator configured to receive the first modified signal and the second modified signal and estimate one of: an amplitude, a time delay, and a phase delay of the interference signal portion of the first modified signal and the second modified signal; andan amplitude, a time delay and a phase delay for suppressing the interference signal portion of the first modified signal and the second modified signal;wherein, the tunable cross correlator is configured to generate the first control logic signal and the second control logic signal. 9. The system of claim 8, wherein the first signal conditioning device and the second signal conditioning device are each configured to implement radio frequency signal summation and radio frequency signal division as required by the wideband interference suppression system. 10. The system of claim 9, wherein the first control logic signal and the second control logic signal command one &radio frequency signal summation and radio frequency signal division for the respective first and second signal conditioning devices. 11. The system of claim 8, further comprising a two way power combiner configured to receive the first modified signal and the second modified signal. 12. The system of claim 11, wherein the two way power combiner is configured to sum the first modified signal and the second modified signal to create a coherent output signal. 13. The system of claim 8, wherein the first signal conditioning device and the second signal conditioning device are each a radio frequency integrated circuit. 14. The system of claim 8, wherein the tunable cross correlator comprises at least one field programmable gate array circuit in combination with a tunable dual channel digital receiver. 15. The system of claim 8, wherein the tunable cross correlator is configured to receive the first modified signal and the second modified signal and determine at least one of: the relative amplitude difference between the first modified signal and the second modified signal; the relative time delay difference between the first modified signal and the second modified signal; and the relative phase delay difference between the first modified signal and the second modified signal. 16. The system of claim 15, wherein the tunable cross correlator is configured to produce the first control logic signal and the second control logic signal to maximize suppression of the interference signal portion. 17. The system of claim 8, wherein the first signal conditioning device and the second signal conditioning device each configured to cause the interference signal portion within each of the first modified signal and the second modified signal to be 180 degrees out of phase between the first modified signal and the second modified signal. 18. The system of claim 17, wherein the system does not include a band-pass filter.