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Ultra-wideband PDW real-time fusion method

A fusion method and ultra-wideband technology, applied in the field of radar reconnaissance, can solve the complex and time-consuming problems of PDW, and achieve the effect of realizing ultra-wideband real-time processing, which is simple and easy to implement

Pending Publication Date: 2021-08-27
中国船舶重工集团公司第七二三研究所
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Problems solved by technology

However, in engineering applications, especially in the face of large bandwidth and high pulse density, the comparison between PDW is more complicated and time-consuming

Method used

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  • Ultra-wideband PDW real-time fusion method
  • Ultra-wideband PDW real-time fusion method

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Embodiment Construction

[0027] Such as figure 1 and figure 2 Shown, a kind of ultra-wideband PDW real-time fusion method comprises the following steps:

[0028] Step 1: The master and slave processors select effective signal data and send them to the fusion processor in real time through the high-speed transceiver. The specific steps are:

[0029] Step 1.1: The master processor and the slave processor respectively perform FFT or channelization processing on the sampled data of the sensor.

[0030] The purpose of this step is to decompose the UWB signal, and the specific processing method can be selected according to the actual application. This embodiment takes FFT processing as an example. In addition, the number of slave processors in this embodiment is 2 as an example, but not limited thereto.

[0031] Step 1.2: The main processor performs signal detection on the data processed by FFT or channelization, obtains the FFT path or channel number of the effective signal, and sends it to the slave ...

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Abstract

The invention discloses an ultra-wideband PDW real-time fusion method, which comprises the steps that a master processor and a slave processor select effective signal data and send the effective signal data to a fusion processor in real time; the master processor calculates the frequency, the pulse width and the arrival time of the effective signal, forms a PDW and sends the PDW to the fusion processor in real time; and the fusion processor calculates an angle of arrival and a signal amplitude according to the received PDW information and the effective signal data, and generates a fused PDW. According to the invention, FFT or channelization is used to decompose, process and detect ultra-wideband signals, and a high-speed transceiver is used to carry out synchronous real-time interaction of information, so that ultra-wideband real-time processing is realized.

Description

technical field [0001] The invention belongs to the technical field of radar reconnaissance, in particular to an ultra-wideband PDW real-time fusion method. Background technique [0002] In the electronic battlefield, the electronic environment is complex and changeable, and the radar reconnaissance receiver needs to perform real-time processing to detect the enemy's radar signal and generate PDW. PDW generally includes frequency (RF), pulse amplitude (PA), pulse width (PW), time of arrival (TOA) and angle of arrival (AOA). Among them, the angle of arrival needs multi-sensor support, which involves data fusion. [0003] At present, there are literatures that propose a time alignment method based on TOA difference matching, which first performs time alignment, and then associates according to attributes such as frequency and pulse width, and applies the D-S fusion formula to perform data-level PDW decision fusion. However, in engineering applications, especially when faced ...

Claims

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Application Information

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IPC IPC(8): G01S7/02G01S7/28G01S7/295
CPCG01S7/021G01S7/2806G01S7/295
Inventor 马干军李宏圆李霄徐思远姚群
Owner 中国船舶重工集团公司第七二三研究所
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