Phase noise compensation method and system for MIMO system and related components
A phase noise compensation and phase noise technology, applied in the field of signal processing, can solve the problems of inability to compensate for phase noise, the effect of MIMO system synchronization, and the difficulty of determining the initial value of the system, and achieve the effect of reducing the effect of synchronization
Active Publication Date: 2019-10-15
GUANGDONG UNIV OF TECH
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The estimation of phase noise by EKF method mainly uses the method of Taylor series to transform the observation equation of nonlinear system into a linear model. The initial value of is not easy to determine, the calculation accuracy of the phase noise is low, and it is impossible to make reasonable compensation for the phase noise, which leads to a greater impact on the synchronization of the MIMO system
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[0045]In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0046] see below figure 1 , figure 1 It is a flow chart of a phase noise compensation method for a MIMO system provided by an embodiment of the present application.
[0047] Specific steps can include:
[0048] S101: Determine and record the initial phase state of the first symbol in the first frame signal according to the training data of the MIMO ...
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The invention discloses a phase noise compensation method of an MIMO system. The method comprises the following steps: determining and recording an initial phase state of a first code element in a first frame signal according to training data of the MIMO system; calculating a first code element in the frame signal corresponding to the target state according to the covariance matrix of the initialphase state; calculating and recording the initial phase state of the first code element in the next frame signal by using an unscented Kalman filter according to the first code element in the frame signal corresponding to the target state; and calculating phase noise according to the initial phase state, and performing phase noise compensation operation on the MIMO system according to the phase noise. According to the method, the phase noise calculation accuracy can be improved, the phase noise is reasonably compensated, and the synchronization influence of the phase noise on the MIMO systemis reduced. The invention further discloses a phase noise compensation system of the MIMO system, a computer readable storage medium and electronic equipment, which have the above beneficial effects.
Description
technical field [0001] The present invention relates to the technical field of signal processing, in particular to a phase noise compensation method and system of a MIMO system, a computer-readable storage medium and an electronic device. Background technique [0002] MIMO (Multiple Input Multiple Output) system refers to a wireless communication system that uses multiple antennas at the transmitting end and receiving end respectively. This system can double the capacity and spectrum utilization of the communication system without increasing the bandwidth. However, achieving synchronized transmission in high-speed wireless communication systems is a challenging task because many rapidly changing synchronization parameters need to be estimated simultaneously and jointly at the receiver. In a wireless communication system, due to the existence of an imperfect oscillator at the transmitting end of the system, phase noise is introduced. The multiplicative distortion introduced ...
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IPC IPC(8): H04L25/03H04B7/0413
CPCH04B7/0413H04L25/03101
Inventor 李光平刘金桥邢奇奇
Owner GUANGDONG UNIV OF TECH