Forming method and forming device of P-H multi-dimensional orthogonal matrix

An orthogonal matrix, P-H technology, applied in the field of P-H multi-dimensional orthogonal matrix-like construction devices, can solve the problems of limiting the number of channels and the number of accessible users, achieving good orthogonality, low bit error rate, and simple steps Effect
CN108880731AInactive Publication Date: 2018-11-23SUZHOU INDAL PARK INST OF SERVICES OUTSOURCING
5 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU INDAL PARK INST OF SERVICES OUTSOURCING
Publication Date
2018-11-23
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a forming method of a P-H multi-dimensional orthogonal matrix. The forming method comprises the following steps of 1, acquiring a matrix P and a complete orthogonal matrix H, wherein the matrix H is a Hadamard matrix; and 2, inputting the matrix P and the matrix H into a direct product arithmetic unit to perform kronecker product operation, thus acquiring the multi-dimensional orthogonal P-H matrix. According to the forming method of the P-H multi-dimensional orthogonal matrix provided by the invention, the formed P-H matrix is large in scale, good in orthogonal property, low in error code rate and not limited in code length, the generation of the matrix is simple in process and fast in speed, and when the matrix is used as a spreading code, the quantity of channelscan be up to 230,400 or more.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for forming a P-H multi-dimensional orthogonal matrix, and also relates to a device for forming a P-H multi-dimensional orthogonal matrix. The generated large-scale mixed P-H matrix can be used as a spreading code in communication systems such as CDMA. Background technique

[0002] For the CDMA communication system, the four kinds of interference that affect communication are mainly local interference, intersymbol interference, multiple access interference, and leader interference. Generally speaking, if the spread spectrum sequence used in the CDMA system has better correlation characteristics, that is, the stronger the autocorrelation of the sequence and the weaker the cross-correlation, the less interference the whole system receives. Among the four types of interference mentioned above, except for local interference, the remaining three types of interference can be reduced or even eliminated by selecting spreading ...

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