Space diversity MMSE-RISIC-NP equalization method
A MMSE-RISIC-NP, space diversity technology, applied in the direction of scattering propagation system, shaping network in transmitter/receiver, baseband system components, etc., can solve data noise interference, noise signal and intersymbol interference signal estimation Problems such as accumulating errors and reducing the accuracy of judgment results can achieve the effect of reducing additional interference and improving accuracy
Pending Publication Date: 2022-04-15
中国人民解放军95526部队
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0041] Through the above analysis, the problems and defects of the existing technology are: the existing technology is interfered by data noise, which reduces the accuracy of the judgment result
[0042] The difficulty in solving the above problems and defects is: how to design a frequency domain equalization algorithm to accurately estimate and remove the noise signal and intersymbol interference signal in the received signal. If the noise signal and intersymbol interference signal are not estimated accurately, it is easy to cause cumulative errors
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0158] 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.
[0159] Aiming at the problems existing in the prior art, the present invention provides a space diversity MMSE-RISIC-NP equalization method. The present invention will be described in detail below in conjunction with the accompanying drawings.
[0160] Those of ordinary skill in the industry of the space diversity MMSE-RISIC-NP equalization method provided by the present invention can also adopt other steps to implement, figure 1 The space diversity MMSE-RISIC-NP equalization method provided by the present invention is only a specific embodiment.
[0161] Such as figure 1 As shown, the space diversity MMSE-RISIC-NP equ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of troposphere scatter communication, and discloses a space diversity MMSE-RISIC-NP equalization method, and the method comprises the steps: taking an SC-FDE (Single Input Multiple Output-Single Carrier Frequency Domain Equalization) system as a basis, and expanding the SC-FDE system to an MIMO-SCFDE system; and establishing a model of the space diversity MIMO-SCFDE system, and carrying out space diversity MMSE-RISIC equalization and space diversity MMSE-RISIC-NP equalization. According to the method, the data noise is predicted and removed, so that the accuracy of a judgment result is improved; and on the other hand, delta estimation is carried out on the data subjected to the space diversity MMSE-RISIC equalization algorithm and data separation to obtain delta d which is closer to delta d, and compared with a traditional MMSE-RISIC algorithm, additional interference caused by delta estimation is reduced.
Description
technical field [0001] The invention belongs to the technical field of troposcatter communication, in particular to a space diversity MMSE-RISIC-NP equalization method. Background technique [0002] At present, traditional troposcatter communication waveforms, such as Distortion Adaptive Receiver (DAR), overcome the influence of multipath propagation by increasing the guard interval of adjacent symbols. However, when the information transmission rate increases from 2Mb / When s is increased to 8Mb / s or even higher, the passive way of increasing the guard interval is no longer feasible. At this time, a balanced way should be adopted to actively eliminate the influence of multipath propagation. Equalization is an amplitude and phase compensation method to minimize bit error rate degradation caused by intersymbol interference. If the equalization is performed in the time domain, it is called time domain equalization, which is generally realized by a transversal filter, and the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H04L25/03H04B7/22
Inventor 齐永磊陈西宏万洪川胡邓华张爽袁迪喆
Owner 中国人民解放军95526部队