A Receiver Coupling Power Prediction Method

A technology of coupling power and prediction method, which is applied in receiver monitoring, transmitter monitoring, transmission monitoring, etc., to achieve the effect of simple and clear principle and strong engineering practicability

Active Publication Date: 2020-12-01
CHINA SHIP DEV & DESIGN CENT
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Problems solved by technology

When the receiver bandwidth is wide, using Gr to represent the relative coupling power will lead to a larger estimated power difference ΔG

Method used

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  • A Receiver Coupling Power Prediction Method
  • A Receiver Coupling Power Prediction Method
  • A Receiver Coupling Power Prediction Method

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] A receiver coupling power prediction method, comprising the following steps:

[0034] 1. Transmit signal preprocessing

[0035] Generally, due to the signal characteristics or accumulation time of the pulse signal spectrum collected by the spectrum analyzer, there may be a large difference between the power value corresponding to some frequency points and the power value corresponding to the surrounding frequency points, and the receiver coupling signal usually covers a certain Bandwidth, so in the spectrum-based coupling power prediction method, it is first necessary to preprocess the spectrum of the transmitted si...

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Abstract

The invention discloses a coupling power prediction method of a receiver. The prediction method comprises the following steps: 1) transmitting signal preprocessing: extracting a transmitting signal spectrum envelope, and performing interpolation on the spectrum envelope by using a linear interpolation method to acquire the spectrum envelope with the appropriate frequency interval; and 2) couplingpower prediction: predicting a coupling signal power value by using the transmitting signal bandwidth, the receiver bandwidth and a receiver equivalent filter model. The invention provides a couplingpower prediction method of the receiver. A more accurate receiver coupling power prediction model based on spectrum estimation is established, the problem that the power, which is coupled to the receiver, of the transmitting signals with different bandwidths is hard to predict is solved; the prediction method is suitable for a bandwidth receiver and a narrowband receiver at the same time. The prediction method disclosed by the invention is concise and clear in principle, and strong in engineering practicability.

Description

technical field [0001] The invention relates to electromagnetic compatibility calculation and interference prediction technology, in particular to a receiver coupling power prediction method. Background technique [0002] In order to carry out electromagnetic compatibility calculation and interference analysis, it is usually necessary to estimate the power coupled to the receiver. The relationship between the coupling power and the interference threshold can determine the degree of interference of the transmitted signal to the receiver. Monitoring the time-domain waveform of the transmitted signal, and calculating the power through the time-domain signal and the receiver filtering model can accurately obtain the power of the coupled signal, but it is usually difficult to collect the transmitted signal waveform, especially for pulse signals with relatively narrow bandwidths such as radar signals. High sampling rate and large memory capacity for complete, distortion-free pulse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/10H04B17/20H04B17/327H04B17/391H04B1/10
CPCH04B1/1027H04B17/103H04B17/20H04B17/327H04B17/3913
Inventor 陶理谭辉刘其凤肖龙张崎
Owner CHINA SHIP DEV & DESIGN CENT
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