System and methods for remote sensing using double-sideband signals
First Claim
1. A method of remote sensing, the method comprising:
- transmitting a double-sideband signal comprising a first frequency component and a second frequency component; and
receiving the double-sideband signal after it is reflected by a subject;
wherein a separation between a first frequency of the first frequency component and a second frequency of the second frequency components causes a spike in a signal response corresponding to one sideband of the received double-sideband signal to substantially overlap a null point of a signal response corresponding to the other sideband of the received double-sideband signal.
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Abstract
A sensing system is provided that includes a transceiver. The transceiver includes a transmitter chain that transmits a double-sideband signal having first and second frequency components, and a receiving chain that receives the double-sideband signal after it is reflected by a target. The system further includes a baseband circuit for extracting information content from the received double-sideband signal. A separation between a first frequency of the first frequency component and a second frequency of the second frequency component causes a spike in a signal response generated by one sideband of the received double-sideband signal to substantially overlap a null point of a signal response generated by the other sideband of the received double-sideband signal.
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Citations
34 Claims
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1. A method of remote sensing, the method comprising:
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transmitting a double-sideband signal comprising a first frequency component and a second frequency component; and receiving the double-sideband signal after it is reflected by a subject; wherein a separation between a first frequency of the first frequency component and a second frequency of the second frequency components causes a spike in a signal response corresponding to one sideband of the received double-sideband signal to substantially overlap a null point of a signal response corresponding to the other sideband of the received double-sideband signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 22, 23, 24, 25, 32, 33, 34)
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8. A sensing system, comprising:
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a transceiver including a transmitter chain that transmits a double-sideband signal having a first frequency component and a second frequency component, and a receiving chain that receives the double-sideband signal after it is reflected by a target; and a baseband circuit for extracting information content from the received double sideband signal; wherein a separation between a first frequency of the first frequency component and a second frequency of the second frequency component causes a spike in a signal response generated by one sideband of the received double-sideband signal to substantially overlap a null point of a signal response generated by the other sideband of the received double-sideband signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 26, 27, 28, 29, 30, 31)
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16. A machine-readable storage medium, the storage medium comprising machine-directing instructions for:
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transmitting a double-sideband signal comprising a first frequency component and a second frequency component; and receiving the double-sideband signal after it is reflected by a subject; wherein a separation between a first frequency of the first frequency component and a second frequency of the second frequency components causes a spike in a signal response corresponding to one sideband of the received double-sideband signal to substantially overlap a null point of a signal response corresponding to the other sideband of the received double-sideband signal. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification