High frequency ground wave radar remote track initiation method and device

A technology of high-frequency ground wave radar and track initiation, applied in the field of radar, can solve the problem of difficult formation of over-the-horizon track

Active Publication Date: 2013-01-16
哈尔滨工大雷信科技有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that it is difficult to form the over-the-horizon track at the far end of the high-frequency ground wave radar, and provide a network method for inference of track initial knowledge, which mainly includes the distribution characteristics of the over-the-horizon point track at the far end of the high-frequency ground wave radar Extraction of remote over-the-horizon track initial knowledge base, far-end over-the-horizon track initial knowledge reasoning algorithm network

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  • High frequency ground wave radar remote track initiation method and device
  • High frequency ground wave radar remote track initiation method and device

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[0022] It is understood that the following description provides many different embodiments, or examples, for implementing various elements of the invention. Specific examples of components and arrangements are described below to simplify the present disclosure. Of course these are merely examples and are not intended to be limiting. Furthermore, the following description of a first component formed on a second component may include embodiments in which the first and second components are formed in direct contact, and may also include embodiments in which additional components are formed inserted into the first and second components An embodiment such that the first and second components are not in direct contact. Various features may be arbitrarily drawn in different sizes for simplicity and clarity.

[0023] Such as Figure 5 As shown, the basic principle of the present invention is at first based on the strong mutation, non-uniformity, discontinuity and uncertainty charac...

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Abstract

The invention provides a high frequency ground wave radar remote track initiation method, which comprises the following steps of: extracting feature values of a trace point, wherein the feature values comprise radial velocity and change rate thereof, navigation speed degree and change rate thereof, radar cross-section (RCS) size and change rate thereof, as well as signal to clutter ratio and change rate thereof; classifying each of the feature values into a plurality of intervals; structuring a knowledge base of the high frequency ground wave radar remote track initiation; calculating the confidence coefficient of the trace point relative to the track initiation according to the knowledge base; judging whether the track initiation is needed according to the accumulated total confidence coefficient and the change rate thereof, wherein if the total confidence coefficient and the change rate thereof exceed a preset threshold value, performing the track initiation. Besides, the invention further provides a high frequency ground wave radar remote track initiation device.

Description

technical field [0001] The present invention generally relates to the field of radar, and more specifically relates to a method and device for starting a remote track of a high-frequency ground wave radar. Background technique [0002] High-frequency ground wave radar uses the principle of diffraction propagation of vertically polarized electromagnetic waves in the high-frequency band along the ocean surface, and can detect hundreds of kilometers of over-the-horizon detection of naval ship targets and flying targets. High-frequency ground wave radar works in the short-wave band where the frequency is very crowded and the electromagnetic environment is extremely complex, and its detection performance is easily affected by changes in the electromagnetic environment. In a complex electromagnetic environment, it is difficult for high-frequency ground-wave radar to ensure the continuity of the target track. At the same time, the low azimuth resolution leads to the high dispersion...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N5/04
Inventor 权太范许荣庆周共建马子龙张庆祥赵彬
Owner 哈尔滨工大雷信科技有限公司
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