Adaptive blanking interface apparatus for self-protection jamming equipment employed in conjunction with radar systems
First Claim
1. In an electronic countermeasures (ECM) system of the type employing a jamming apparatus including a transmitter portion for transmitting jamming signals in order to deceive a foreign transmitter/receiving apparatus and including a warning receiver means operative to receive foreign or threat transmissions to determine the nature of such transmissions and to inform said jamming apparatus of the nature of such threat transmissions, with said warning receiver means capable of operating according to different modes in order to determine the nature of said foreign transmissions, the combination therewith of apparatus for providing selective blanking to said jamming apparatus according to the modes of operation of said receiver means to allow said receiver means and said jamming means to operate without interference between the same, comprising:
- interface means coupled between said jamming apparatus and said receiver means and adapted to exchange information between said jamming apparatus and said receiver means to generate optimum blanking parameter information between said jamming apparatus and said receiver means according to the mode of operation of said receiver means whereby any one of said modes can be accommodated by said ECM system according to said information exchanged, said interface means includinga first data bus coupled between said jamming apparatus and said receiver means and adapted to propagate a series of command codes determined according to the mode of operation of said receiver means and indicative of said information exchange according to said series of command codes,a second data bus coupled between said jamming apparatus and said receiver means and adapted to propagate code assignment messages defining a frequency range of operation to said receiver means to determine said blanking parameter information according to one of said command codes on said first bus indicative of said information exchange according to said code assignment messages.
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Accused Products
Abstract
There is disclosed an interface apparatus which enables a radar jamming system to operate in conjunction with a number of different radar warning receivers. The interface enables the jamming apparatus to couple to various types of radar warning receivers and to specify proper blanking intervals for each of the receivers according to the type of blanking required and the operation of such receivers. The system employs a look-through blanking bus which essentially consists of six data lines and a strobe. The data on this bus is fully encoded to provide 64 individual command codes. The command codes are established by the particular RWR and are made available via the interface to the jamming system over a multiplexed bus. This bus operates to initially specify the RWR by determining the various codes which are transmitted by the RWR. For each code transmitted there is an identification number which defines frequency ranges while providing a field to determine the real time action to be taken upon receipt of the code which is transmitted over the look-through blanking bus. In this manner by determining the type of data received on the look-through bus the jamming apparatus can determine which type of RWR it is connected to and therefore determine what blanking information is necessary in order to accommodate proper system operation.
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Citations
18 Claims
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1. In an electronic countermeasures (ECM) system of the type employing a jamming apparatus including a transmitter portion for transmitting jamming signals in order to deceive a foreign transmitter/receiving apparatus and including a warning receiver means operative to receive foreign or threat transmissions to determine the nature of such transmissions and to inform said jamming apparatus of the nature of such threat transmissions, with said warning receiver means capable of operating according to different modes in order to determine the nature of said foreign transmissions, the combination therewith of apparatus for providing selective blanking to said jamming apparatus according to the modes of operation of said receiver means to allow said receiver means and said jamming means to operate without interference between the same, comprising:
interface means coupled between said jamming apparatus and said receiver means and adapted to exchange information between said jamming apparatus and said receiver means to generate optimum blanking parameter information between said jamming apparatus and said receiver means according to the mode of operation of said receiver means whereby any one of said modes can be accommodated by said ECM system according to said information exchanged, said interface means including a first data bus coupled between said jamming apparatus and said receiver means and adapted to propagate a series of command codes determined according to the mode of operation of said receiver means and indicative of said information exchange according to said series of command codes, a second data bus coupled between said jamming apparatus and said receiver means and adapted to propagate code assignment messages defining a frequency range of operation to said receiver means to determine said blanking parameter information according to one of said command codes on said first bus indicative of said information exchange according to said code assignment messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification