Radar warning receiver
First Claim
1. A radar warning receiver for detecting and analyzing radar signals, comprising:
- a plurality of RF heads each tuned to a predetermined frequency band and connected to an antenna covering a preselected sector of reception of radar signals, each of said heads including a frequency converter converting the received signals to a common frequency base-band and producing an output signal in said base band corresponding to the signal received by its antenna;
and a central receiver unit receiving said signals from the RF heads;
said central receiver unit comprising;
a plurality of channels, one for each RF head, for receiving and processing the signals from the respective head; and
mode selector means for selectively switching said central receiver unit to operate according to;
(a) an Acquisition Mode, wherein said plurality of channels are connected to cover contiguous sub-bands of said base band;
or(b) an Analysis Mode, wherein said plurality of channels are connected in parallel to cover the same sub-band of said base band.
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Abstract
A radar warning receiver for detecting and analyzing radar signals comprises a plurality of RF heads each tuned to a predetermined frequency band and connected to an antenna covering a preselected sector of reception of radar signals. Each of the heads includes a frequency converter converting the received signals to a common frequency base-band and producing an output signal in the base-band corresponding to the signal received by its antenna. The radar receiver also includes a central receiver unit receiving the signals from the RF heads, the central receiver unit comprising a plurality of channels, one of each RF head, for receiving and processing the signals from the respective head; and mode selector means for selectively switching the central receiver unit to operate according to: (a) an Acquisition Mode, wherein the plurality of channels are connected to cover contiguous sub-bands of the base-band; or (b) an Analysis Mode, wherein the plurality of channels are connected in parallel to cover the same sub-band of the base-band.
82 Citations
20 Claims
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1. A radar warning receiver for detecting and analyzing radar signals, comprising:
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a plurality of RF heads each tuned to a predetermined frequency band and connected to an antenna covering a preselected sector of reception of radar signals, each of said heads including a frequency converter converting the received signals to a common frequency base-band and producing an output signal in said base band corresponding to the signal received by its antenna; and a central receiver unit receiving said signals from the RF heads; said central receiver unit comprising; a plurality of channels, one for each RF head, for receiving and processing the signals from the respective head; and mode selector means for selectively switching said central receiver unit to operate according to; (a) an Acquisition Mode, wherein said plurality of channels are connected to cover contiguous sub-bands of said base band;
or(b) an Analysis Mode, wherein said plurality of channels are connected in parallel to cover the same sub-band of said base band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A radar warning receiver for detecting and analyzing radar signals, comprising:
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four RF heads each tunable to cover a dynamic range of 700-17000 MHz and connected to an antenna covering a preselected sector of reception of radar signals, each of said heads including a frequency converter converting the received signals to a common frequency base-band and producing an output signal in said base-band corresponding to the signal received by its antenna; and a central receiver unit receiving said signals from the RF heads; said central receiver unit comprising; a plurality of channels, one for each RF head, for receiving and processing the signals from the respective head; mode selector means for selectively switching said central receiver unit to operate according to; (a) an Acquisition Mode, wherein the plurality of channels are connected to cover contiguous sub-bands of said base-band;
or(b) an Analysis Mode, wherein the plurality of channels are connected in parallel to cover the same sub-band of said base-band. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification