Short data packet incoherent detection method and detector based on conjugate zero modulation
A non-coherent detection and short data packet technology, which is applied in the direction of modulated carrier system, electromagnetic receiver, digital transmission system, etc., to achieve the effect of improving robustness, avoiding channel estimation and signal equalization
Active Publication Date: 2021-10-29
NAVAL UNIV OF ENG PLA
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
There is also little research on non-coherent reception of short packets
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
[0062] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0063] A non-coherent detection method for short data packets based on conjugate zero-point modulation according to an embodiment of the present invention, its transceiver principle is as follows figure 1 As shown, the information bits ( K is the number of information length digits of the binary information bit sequence) is mapped to the zero points in the zero point codebook one by one accor...
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 discloses a short data packet incoherent detection method and detector based on conjugate zero modulation. The detection method comprises the following steps: S1, solving a zero point of an autocorrelation polynomial of a Huffman sequence based on the autocorrelation characteristic of the Huffman sequence, and constructing a zero point codebook; S2, mapping a binary information bit sequence to be sent to the zero codebook, extracting polynomial coefficients taking the zero points as roots, and normalizing the polynomial coefficients to generate a Huffman sequence to complete signal modulation; S3, sending the Huffman sequence to a multipath fading channel for signal transmission after being reversed; S4, carrying out inverted-sequence flipping on a receiving sequence received from the multipath fading channel, and then carrying out z transformation; and S5, performing zero point detection on the polynomial subjected to z transformation, and decoding the binary information bit sequence. The method is suitable for incoherent detection of the short data packet under the unknown multipath channel.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and more specifically relates to a non-coherent detection method and detector for short data packets based on conjugate zero-point modulation. Background technique [0002] With the popularity of the fifth-generation mobile communication (5G) and the miniaturization and intelligence of terminal equipment, application scenarios such as unmanned driving, Internet of Vehicles, and machine-to-machine communication (M2M) have gradually entered people's field of vision. In the future, wireless communication will emerge. More high-speed connection applications between "people and things" and "things and things". One of the major challenges emerging technologies must address is supporting a large number of devices with diverse and even conflicting traffic types, including high-speed cellular links, device-to-device connections, and wireless links carrying short packets of sensor data. Fra...
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 IPC IPC(8): H04B10/66H04L27/26
CPCH04B10/66H04L27/2601
Inventor 窦高奇孙雅萍冯士民李丽华刘琴涛王世宇
Owner NAVAL UNIV OF ENG PLA