A Distributed Airborne Electronic Countermeasures System Architecture

Abstract

The present application belongs to the field of airborne electronic warfare system architecture design, and specifically relates to a distributed airborne electronic warfare system architecture. The system architecture includes an electronic warfare type nose, a baseline type electronic warfare system, a mid-frequency band electronic warfare aperture, and a radar type nose, wherein the baseline type electronic warfare system is arranged at the leading edge and trailing edge of the wing, the mid-frequency band electronic warfare aperture is set to omnidirectional coverage, the electronic warfare type nose, the baseline type electronic warfare system, the mid-frequency band electronic warfare aperture, and the radar type nose are all connected to a signal processing platform, and the signal processing platform is used to manage and schedule the electronic warfare functions of each subsystem. The present application can achieve penetrating electronic warfare capabilities in a strong electromagnetic environment through an electronic warfare type nose, and has electronic warfare capabilities covering omnidirectional 4π space. At the same time, it adopts a multifunctional integrated design, which reduces the volume, weight, and power consumption of the UAV radio frequency sensor, and solves the position contradiction problem of the multi-antenna aperture layout.

Description

Technical Field

[0001] The present application belongs to the field of airborne electronic countermeasure system architecture design, and specifically relates to a distributed airborne electronic countermeasure system architecture. Background Art

[0002] Fighter electronic countermeasures systems mainly complete electromagnetic situational awareness, electronic self-defense interference and other functions, and are important avionics systems to ensure the survivability of fighters. The electronic countermeasures function on traditional fighters is mainly realized by the leading and trailing edges of the wings, which is slightly insufficient in the current strong electromagnetic combat environment. This is mainly reflected in the following shortcomings: a. Existing fighters only have electromagnetic situational awareness, electronic self-defense interference and other functions in the circumferential annular area, and cannot cover the upper back and belly of the aircraft, which has a blind spot; b. Existing fighter electronic countermeasures systems are mainly designed for the survivability of fighters, and do not have strong penetrating electronic warfare capabilities, and cannot provide cover for the formation; c. Existing electronic warfare functions are separated from radar detection and inter-machine communication functions, and the degree of sensor integration is low, which makes the antenna aperture on the fighter platform too large, and the platform weight, energy and other costs are high, affecting the performance of the aircraft platform. Summary of the invention

[0003] In order to solve the above problems, the present application provides a distributed airborne electronic warfare system architecture, which mainly includes an electronic warfare type nose, a baseline electronic warfare system, a mid-frequency band electronic warfare aperture and a radar type nose, wherein the baseline electronic warfare system is arranged at the leading edge and trailing edge of the wing, the mid-frequency band electronic warfare aperture is set to omnidirectional coverage, the electronic warfare type nose, the baseline electronic warfare system, the mid-frequency band electronic warfare aperture and the radar type nose are all connected to a signal processing platform, and the signal processing platform is used to manage and schedule the electronic warfare functions of each subsystem.

[0004] Preferably, the baseline electronic warfare system consists of a leading edge low-frequency band electromagnetic sensing aperture, a leading edge low-frequency band electronic interference aperture, a leading edge high-frequency band electromagnetic sensing aperture, a trailing edge low-frequency band electromagnetic sensing aperture, a trailing edge low-frequency band electronic interference aperture, and a trailing edge high-frequency band electromagnetic sensing aperture.

[0005] Preferably, the mid-frequency band electronic warfare aperture includes 6 multi-function antenna arrays MFA, and the 6 multi-function antenna arrays MFA are arranged around the fuselage.

[0006] Preferably, the multi-function antenna array MFA arranged around the fuselage is divided into: using the entire antenna array surface to realize active detection of close-range targets, using the middle part of the array surface to realize electronic interference, using the upper half of the array surface to realize missile guidance, using an upper array surface and a right array surface to realize electromagnetic situational awareness, and using the right half of the array surface to realize the transmission and reception of directional link communications.

[0007] Preferably, the radar-type nose includes a radio frequency front end and a phased array antenna aperture for achieving long-range target detection and interference with target sources.

[0008] Preferably, the electronic warfare type nose includes an electronic countermeasure antenna aperture and a radio frequency front end, the electronic countermeasure antenna aperture is used to achieve in-flight interference, and the radio frequency front end is used to control the signal radiation and reception of the electronic countermeasure antenna aperture.

[0009] Preferably, the electronic warfare type head also includes an electromagnetic sensing aperture for covert detection, and the radio frequency front end of the electronic warfare type head is used to control the signal radiation and reception of the electromagnetic sensing aperture.

[0010] This application improves the fighter's electronic countermeasure coverage and accompanying electronic jamming capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a system architecture diagram of a preferred embodiment of the distributed airborne electronic countermeasure system architecture of the present application. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0013] This application involves the design of airborne electronic countermeasure system architecture, especially for penetrating electromagnetic spectrum combat scenarios and airborne platform antenna aperture integration design:

[0014] In order to meet the requirements of penetrating electronic warfare capability and sensor integration in strong electromagnetic combat environment of fighter jets, this application proposes a distributed airborne electronic warfare system architecture, such as Figure 1 As shown, it mainly includes the electronic warfare type nose, the baseline electronic warfare system at the leading and trailing edges of the wings, the omnidirectional mid-frequency band electronic warfare aperture, the high-gain electronic support and high-power electronic countermeasure capability of the radar type nose.

[0015] The electronic warfare nose is designed for penetrating electronic warfare functions, and has the ability to interfere with ground (sea) early warning detection radars, target indication radars, and airborne early warning radars, as well as covert detection capabilities based on low-band external radiation sources. The leading and trailing edges of the wings of the baseline electronic warfare system have low-frequency electromagnetic situational awareness and electronic self-defense jamming capabilities, as well as high-frequency electromagnetic situational awareness capabilities. The mid-frequency electronic warfare function aperture covers the omnidirectional 4π space, and is integrated with radar close-range detection and inter-machine communication data links. It supports terminal defense detection while having mid-frequency electromagnetic situational awareness and electronic self-defense jamming capabilities. The radar-type nose has high-gain electronic support and high-power electronic countermeasure capabilities while having wide-spectrum long-range detection capabilities.

[0016] The present invention is described in detail below through a specific electronic countermeasure system architecture design:

[0017] See attached Figure 1 ,

[0018] The distributed electronic warfare system architecture of this example consists of a baseline electronic warfare system, an electronic warfare aperture covering the mid-frequency band, a radar nose, and an electronic warfare nose. Each subsystem manages and dispatches the electronic warfare functions of multiple subsystems through the electronic warfare aperture function management software in the signal processing platform. The electronic warfare system architecture design of this example is as follows:

[0019] 1. The baseline electronic warfare system consists of a leading edge low-frequency electromagnetic sensing aperture, a leading edge low-frequency electronic jamming aperture, a leading edge high-frequency electromagnetic sensing aperture, a trailing edge low-frequency electromagnetic sensing aperture, a trailing edge low-frequency electronic jamming aperture, and a trailing edge high-frequency electromagnetic sensing aperture, and has 360° circumferential high- and low-frequency electromagnetic situational awareness and low-frequency electronic jamming capabilities;

[0020] 2. Covering the mid-frequency band The electronic warfare aperture is mainly composed of 6 multi-function antenna arrays (MFAs), which are arranged around the fuselage and can achieve 4π space coverage. While having the electromagnetic situational awareness and electronic jamming functions of the mid-frequency band, it also has the functions of close-range target active detection, inter-machine data link, and missile guidance. When realizing the functions, active detection needs to be realized using the entire antenna array, electronic jamming needs to be realized by a part of the array in the middle, missile guidance function is realized by the upper half of the array, electromagnetic situational awareness is realized by a line of the upper array and a line of the right array, and the transmission and reception of directional link communication is realized by the right half of the array.

[0021] 3. The radar-type nose consists of a radio frequency front end and a phased array antenna aperture. While realizing long-range target detection, the radar-type nose can use the phased array antenna aperture to achieve high-gain electronic support and high-power electronic countermeasure capabilities, and can interfere with multiple target sources at the same time.

[0022] 4. The electronic warfare nose is composed of an electronic countermeasure antenna aperture, an electromagnetic sensing aperture and a radio frequency front end. The electronic countermeasure antenna aperture realizes the ability to interfere with ground (sea) surface early warning detection radar, target indication radar, and airborne early warning radar. The electromagnetic sensing aperture realizes the covert detection capability based on low-band out-of-band radiation sources. The radio frequency front end controls the signal radiation and reception of the electronic countermeasure antenna aperture and the electromagnetic sensing aperture.

[0023] 5. The aircraft's signal processing platform is equipped with electronic countermeasure aperture function management software to realize the function management and scheduling of each subsystem.

[0024] The airborne electronic warfare system architecture can achieve penetrating electronic warfare capabilities in strong electromagnetic environments through the electronic warfare nose, and has electronic warfare capabilities covering omnidirectional 4π space. At the same time, it adopts a multifunctional integrated design to reduce the size, weight and power consumption of the UAV's RF sensor and solve the positional contradiction problem of the multi-antenna aperture layout.

[0025] Although the present application has been described in detail above with general descriptions and specific implementation schemes, it is obvious to those skilled in the art that some modifications or improvements may be made to the present application. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope of protection claimed in the present application.

Claims

1. A distributed airborne electronic countermeasure system architecture, characterized in that: It includes an electronic warfare type nose, a baseline type electronic warfare system, a mid-frequency band electronic warfare aperture and a radar type nose, wherein the baseline type electronic warfare system is arranged at the leading edge and the trailing edge of the wing, the mid-frequency band electronic warfare aperture is set to cover omnidirectionally, the electronic warfare type nose, the baseline type electronic warfare system, the mid-frequency band electronic warfare aperture and the radar type nose are all connected to a signal processing platform, and the signal processing platform is used to manage and dispatch the electronic countermeasure functions of each subsystem; The mid-frequency band electronic warfare aperture includes 6 multi-function antenna arrays MFA, which are arranged around the fuselage to achieve 4π spatial coverage and have mid-frequency band electromagnetic situational awareness and electronic jamming functions. The multi-function antenna arrays MFA arranged around the fuselage are divided into: using the entire antenna array surface to achieve active detection of close-range targets, using the middle part of the array surface to achieve electronic jamming, using the upper half of the array surface to achieve missile guidance, using one upper array surface and one right array surface to achieve electromagnetic situational awareness, and using the right half of the array surface to achieve transmission and reception of directional link communications.

2. The distributed airborne electronic countermeasure system architecture according to claim 1, characterized in that: The baseline electronic warfare system consists of a leading edge low-frequency band electromagnetic sensing aperture, a leading edge low-frequency band electronic jamming aperture, a leading edge high-frequency band electromagnetic sensing aperture, a trailing edge low-frequency band electromagnetic sensing aperture, a trailing edge low-frequency band electronic jamming aperture, and a trailing edge high-frequency band electromagnetic sensing aperture.

3. The distributed airborne electronic countermeasure system architecture according to claim 1, characterized in that: The radar-type nose includes a radio frequency front end and a phased array antenna aperture, which are used to achieve long-range target detection and interference with target sources.

4. The distributed airborne electronic countermeasure system architecture according to claim 1, characterized in that: The electronic warfare type nose includes an electronic countermeasure antenna aperture and a radio frequency front end. The electronic countermeasure antenna aperture is used to achieve team interference, and the radio frequency front end is used to control the signal radiation and reception of the electronic countermeasure antenna aperture.

5. The distributed airborne electronic countermeasure system architecture as claimed in claim 4, characterized in that: The electronic warfare type head also includes an electromagnetic sensing aperture for covert detection, and the radio frequency front end of the electronic warfare type head is used to control the signal radiation and reception of the electromagnetic sensing aperture.

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