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Pulse interlacing-based inverse synthetic aperture radar (ISAR) imaging self-adaptive radar resource scheduling method

A pulse interleaving, imaging radar technology, applied in special data processing applications, reflection/re-radiation of radio waves, measurement devices, etc., can solve problems such as low resource utilization

Active Publication Date: 2017-05-31
AIR FORCE UNIV PLA
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Problems solved by technology

Most of the existing phased array radar resource scheduling strategies need to allocate a part of continuous fixed resources to realize the imaging function, so the resource utilization rate is low

Method used

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  • Pulse interlacing-based inverse synthetic aperture radar (ISAR) imaging self-adaptive radar resource scheduling method
  • Pulse interlacing-based inverse synthetic aperture radar (ISAR) imaging self-adaptive radar resource scheduling method
  • Pulse interlacing-based inverse synthetic aperture radar (ISAR) imaging self-adaptive radar resource scheduling method

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example

[0091] Example: Imaging Task Scheduling Experiment

[0092] Simulation experiment: Assume that the radar transmits a chirp signal, the transmission pulse width is 10μs, the minimum pointer sliding step is set to 10μs, the time window is 1ms, the simulation time is 1s, the pulse transmission power is 4KW, and the average power of the radar is 500W. The distance from each target to the radar is 10-30Km.

[0093] It should be noted that since the range dimension of the target will affect the arrival time of the radar echo, in order to ensure the imaging quality, the receiving period of the pulse needs to be extended appropriately. If the distance between the radar and the i-th target is R i , the range dimension of the i-th target is Then the width of the actual received pulse of the i-th target should be set as:

[0094]

[0095] After many simulations, it is found that when the number of targets is 50, the system's time resource utilization tends to be saturated. Taking...

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Abstract

The invention provides a pulse interlacing-based inverse synthetic aperture radar (ISAR) imaging self-adaptive radar resource scheduling method. The method comprises the steps of 1, sending a small amount of pulse for recognizing target characteristics; 2, calculating parameters such as observation dimension by using recognized results; 3, scheduling all radar imaging tasks by utilizing a pulse interlacing technology under the premise of meeting resource constraint; 4, carrying out sparse aperture observation imaging on the successfully scheduled takes. The method greatly improves the scheduling success rate and resource utilization rate of a system. After the imaging target characteristics are recognized, the saturation capacity of the system can be concluded by means of a changing curve of an average interlacing degree, so that the scheduling method is more effective.

Description

technical field [0001] The invention relates to an information processing technology and an optimal scheduling strategy, in particular to an ISAR imaging radar resource adaptive scheduling method based on pulse interleaving. Background technique [0002] In recent years, phased array radar technology has made great progress and has been widely used. Compared with conventional mechanical scanning radars, phased array radars have incomparable advantages in time and energy management due to their microsecond-level beam agility, controllable space power and time resource allocation. [0003] A reasonable, flexible and efficient scheduling strategy is the key to whether it can give full play to its advantages. Common scheduling methods can be mainly divided into two categories: template method and adaptive scheduling method. Among them, the adaptive scheduling method can flexibly adjust the resource scheduling strategy according to the working environment and task requirements,...

Claims

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Application Information

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IPC IPC(8): G06F17/50G01S13/90
CPCG01S13/904G01S13/9064G06F30/20
Inventor 张群孟迪罗迎陈怡君李开明张慧伟李彬彬
Owner AIR FORCE UNIV PLA
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