TARGET SPOTTING AND TRACKING APPARATUS AND METHOD
First Claim
1. An apparatus for determining location information for a target, the apparatus comprising:
- a signal generation module configured to generate a cyclic transmit signal having a fixed frequency slope over a substantial portion of each cycle and an operational frequency that is selected to penetrate foliage;
at least one transmit antenna configured to generate electromagnetic radiation corresponding to the cyclic transmit signal without up-conversion of the cyclic transmit signal;
a down-conversion module configured to down-convert a plurality of return signals received from a corresponding plurality of return antennas with the cyclic transmit signal to provide a corresponding plurality of baseband signals;
a magnitude and phase extraction module configured to receive the plurality of baseband signals and provide magnitude and phase information for each return signal as a function of range;
a target location module configured to determine a location of a target from the magnitude and phase information.
1 Assignment
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Accused Products
Abstract
A method for determining location information for a target may include generating a cyclic transmit signal having a fixed frequency slope over a substantial portion of each cycle and an operational frequency that is selected to penetrate foliage, transmitting the cyclic transmit signal without up-conversion with at least one transmit antenna, down-converting two or more return signals received from corresponding return antennas with the cyclic transmit signal to provide a corresponding set of baseband signals, extracting magnitude and phase information for each return signal as a function of range from the plurality of baseband signals, and determining a location of a target from the magnitude and phase information. A corresponding apparatus, system, and computer readable medium are also disclosed herein.
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Citations
20 Claims
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1. An apparatus for determining location information for a target, the apparatus comprising:
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a signal generation module configured to generate a cyclic transmit signal having a fixed frequency slope over a substantial portion of each cycle and an operational frequency that is selected to penetrate foliage; at least one transmit antenna configured to generate electromagnetic radiation corresponding to the cyclic transmit signal without up-conversion of the cyclic transmit signal; a down-conversion module configured to down-convert a plurality of return signals received from a corresponding plurality of return antennas with the cyclic transmit signal to provide a corresponding plurality of baseband signals; a magnitude and phase extraction module configured to receive the plurality of baseband signals and provide magnitude and phase information for each return signal as a function of range; a target location module configured to determine a location of a target from the magnitude and phase information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for determining location information for a target, the method comprising:
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generating a cyclic transmit signal having a fixed frequency slope over a substantial portion of each cycle and an operational frequency that is selected to penetrate foliage; transmitting the cyclic transmit signal without up-conversion with at least one transmit antenna; down-converting a plurality of return signals received from a corresponding plurality of return antennas with the cyclic transmit signal to provide a corresponding plurality of baseband signals; extracting magnitude and phase information for each return signal as a function of range from the plurality of baseband signals; and determining a location of a target from the magnitude and phase information. - View Dependent Claims (13, 14, 15, 16)
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17. A computer readable medium comprising computer readable program codes configured to conduct a method for determining location information for a target, the method comprising:
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generating a cyclic transmit signal having a fixed frequency slope over a substantial portion of each cycle and an operational frequency that is selected to penetrate foliage; transmitting the cyclic transmit signal without up-conversion with at least one transmit antenna; down-converting a plurality of return signals received from a corresponding plurality of return antennas with the cyclic transmit signal to provide a corresponding plurality of baseband signals; extracting magnitude and phase information for each return signal as a function of range from the plurality of baseband signals; and determining a location of a target from the magnitude and phase information. - View Dependent Claims (18, 19, 20)
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Specification