SYSTEMS AND METHODS FOR COHERENT SIGNAL FUSION FOR TIME AND FREQUENCY ESTIMATION

摘要

A signal processing system is provided. The signal processing system includes a transmission architecture configured to transmit first and second signals, and a receiver architecture including an antenna configured to receive the signals, and a coherent signal fusion processing device communicatively coupled to the antenna. The processing device is configured to generate a broadband analog signal that contains the first and second signals, digitize the broadband analog signal, isolate first and second signals of interest, estimate, relative to a reference template, at least one of a time difference of arrival and a frequency difference of arrival for at least one of the first and second signals of interest, and determine a location of at least one of the transmission architecture and the receiver architecture based on the estimated at least one of a time difference of arrival and a frequency difference of arrival.

主权项

1. A signal processing system comprising:
a transmission architecture configured to transmit a first signal and a second signal; and a receiver architecture comprising:
at least one antenna configured to receive the first and second signals; and
a coherent signal fusion processing device communicatively coupled to said at least one antenna and configured to:
generate a broadband analog signal that contains the first and second signals;digitize the broadband analog signal;isolate a first signal of interest and a second signal of interest from the digitized signal;estimate, relative to a reference template, at least one of a time difference of arrival and a frequency difference of arrival for at least one of the first and second signals of interest; anddetermine a location of at least one of the transmission architecture and the receiver architecture based on the estimated at least one of a time difference of arrival and a frequency difference of arrival for at least one of the first and second signals of interest.