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A method and device for implementing integrated channel engineering

An implementation method and engineering technology, applied in the direction of electrical components, transmission systems, digital technology networks, etc., can solve the problems of large consumption of FPGA hardware resources and complex architecture, and achieve the effect of strong engineering realizability and reduced use

Active Publication Date: 2021-07-23
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the structure of the current integrated channel engineering is complex and the consumption of FPGA hardware resources is large, and a method and device for implementing integrated channel engineering are provided

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  • A method and device for implementing integrated channel engineering
  • A method and device for implementing integrated channel engineering
  • A method and device for implementing integrated channel engineering

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Embodiment Construction

[0026] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0027] In this embodiment, from the perspective of complex bandpass filters, the functional block diagram of data channel synthesis is as follows figure 1 shown. According to this principle, the polyphase structure of channel synthesis can be deduced as:

[0028]

[0029] Where j=0,1,...,M-1, K=2M, M is the extraction rate, and K is the number of channels. Analyzing the above formula, it can be found that

[0030] (1) Yes K point IDFT;

[0031] (2) Since K=2M,

[0032] (3) is the polyphase filtering result of the IDFT output and the prototype filter.

[0033] Based on the above analysis, a channel ...

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Abstract

The invention discloses a channel comprehensive engineering realization method and device. First, joint IDFT is performed on multiple input narrowband channel data, and positive and negative two-way results are obtained through data selection; then format conversion is performed on the output data for subsequent The filter can multiplex the multiplier and output it in natural order after filtering; finally, periodically switch the positive and negative two-way data for polyphase filtering and output a broadband signal. The device includes an inverse discrete Fourier transform (IDFT) module, a format conversion module, and a periodic polyphase filter module. The invention uses direct IDFT to realize the IDFT of multiplying -1 data by an odd channel, and adopts periodic switching data sources to perform polyphase filtering, greatly reduces the use of multiplier resources, and has strong engineering realizability. The invention solves the problem of signal phase mutation caused by direct IDFT for channel synthesis, and the waveform error of the integrated wideband signal is within the acceptable range of engineering, which meets the subsequent wideband signal processing requirements.

Description

technical field [0001] The invention relates to the field of broadband signal synthesis, in particular to a channel synthesis engineering realization method that requires broadband signal synthesis after the broadband signal is channelized. Background technique [0002] With the rapid development of electronic information technology and radio technology, many systems have an increasing demand for spectrum bandwidth. However, there are many difficulties in the processing of broadband signals, and channelization has become one of the choices for broadband signal processing design. After channelizing the wideband signal, many systems need to restore the narrowband signal to a wideband signal for further signal processing. The process of synthesizing multiple narrowband signals into wideband signals is channel synthesis. [0003] Channel synthesis has broad application prospects in electronic reconnaissance receivers and communication receivers, and can be used for non-uniform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/16H03H17/02
CPCH03H17/0201H04B1/16
Inventor 靳学明王小静吕新正蒋千张锦中万卫华
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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