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Method and device for estimating signal arrival angle

A technology of arrival angle and signal, applied in radio wave direction/deviation determination system, direction finder using radio wave, etc., can solve the problems of low calculation amount, large amount of calculation, low precision, etc., to avoid error correction, accurate Estimated value, effect of saving computation

Active Publication Date: 2019-08-30
TELINK SEMICON SHANGHAI
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Problems solved by technology

[0004] Aiming at the above-mentioned problem in the prior art that estimation of the signal angle of arrival requires a large amount of computation and low precision, a method and device for estimating the signal angle of arrival are proposed. Using this method and device, a low-efficiency Calculation-intensive and more accurate signal angle-of-arrival estimation scheme

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  • Method and device for estimating signal arrival angle
  • Method and device for estimating signal arrival angle
  • Method and device for estimating signal arrival angle

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Embodiment Construction

[0072] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0073] In the present invention, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of features, numbers, steps, acts, components, parts or combinations thereof disclosed in the specification, and are not intended to exclude one or multiple other features, numbers, steps, acts, parts, parts or combinations thereof.

[0074] In addition, it should be noted that, in the case of n...

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Abstract

The invention provides a method and device for estimating a signal arrival angle. The method comprises the following steps: acquiring a reference signal sequence and a plurality of groups of signal sample sequences by an array antenna; converting the reference signal sequence and the plurality of groups of signal sample sequences into a reference phase sequence and a plurality of groups of phase sample sequences, respectively performing Vandermonde inverse operation to determine a corresponding reference offset value and a plurality of sample offset values to form a space vector, and determining a signal arrival angle estimation value according to the inner product of the space vector and a plurality of expected space vectors. By using the method, the arrival angle can be estimated only byperforming a series of operation processes with low complexity, so that the operation amount is saved, and a more accurate estimation value is obtained.

Description

technical field [0001] The invention belongs to the technical field of signal analysis and processing, and in particular relates to a method and device for estimating the angle of arrival of a signal. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] Signal angle of arrival estimation has always been an important research topic in the field of array signal processing, and has been widely used in radar, wireless communication and other fields. Among traditional signal angle of arrival estimation algorithms, MUSIC algorithm and ESPRIT algorithm are commonly used. It decomposes the covariance matrix of the array received data into mutually orthogonal signal subspaces and noise subspaces, and uses the direct relationship between the signal and noise subspaces to estimate the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S3/14
CPCG01S3/14
Inventor 金海鹏
Owner TELINK SEMICON SHANGHAI
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