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Harmonic suppression system based on digital-analog hybrid design

A harmonic suppression and digital circuit technology, applied in baseband system components, transmission systems, electrical components, etc., can solve problems that cannot be effectively solved, crosstalk, etc., to improve various indicators, meet miniaturization, and reduce harmonics Effects of Interference and Noise Floor

Active Publication Date: 2018-03-27
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a harmonic suppression system based on digital-analog hybrid design to solve the problem that the original digital circuit design cannot effectively solve the crosstalk of the digital receiver digital circuit to the receiving channel

Method used

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  • Harmonic suppression system based on digital-analog hybrid design
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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings, but it is not intended to limit the present invention.

[0023] like figure 1 As shown, a harmonic suppression system based on a digital-analog hybrid design disclosed in the present invention includes two parts: a digital circuit and an analog circuit. The digital circuit includes a signal processor 101 and an isolation circuit 102. The analog circuit includes receiving latch 103 and receiving channel 104, wherein the signal processor 101 transmits the discrete control information required for the receiving channel 104 to the isolation circuit 102 through the serial interface, and the isolation circuit 102 transmits to the serial interface After the incoming information is isolated, it is sent to the receiving latch 103 through the connector connected in the analog circuit, and the receiving latch 103 receives and analyzes the data transmitted by the serial in...

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Abstract

The invention discloses a harmonic suppression system based on digital-analogue mixed design. The harmonic suppression system comprises two parts, namely a digital circuit and an analogue circuit, wherein the digital circuit comprises a signal processor and an isolation circuit; the analogue circuit comprises a receiving latch and a receiving channel. The harmonic suppression system based on the digital-analogue mixed design is used of the problem of interference of a digital circuit in an existing digital-analogue mixed receiver with the receiving channel via a control line.

Description

technical field [0001] The invention relates to the field of software radio communication, in particular to a harmonic suppression system based on digital-analog hybrid design. Background technique [0002] Under the trend of software radio, the digital-analog sampling of the wideband digital receiver is getting closer and closer to the radio frequency front end, which brings about the problem of higher and higher digital sampling speed and signal processing speed. The high-speed clock and high-speed inverted data signal of the digital circuit will generate high-order harmonics that overlap with the receiving frequency band, and crosstalk to the power supply, ground and digital circuit to the control line of the receiving channel in the form of conduction and radiation. Interference signals on the power supply and ground can be suppressed by using reasonable segmentation, filtering and single-point connection technologies to suppress the transmission of the interference sign...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04L25/08
Inventor 吴晓红王延芳刘莉何敏
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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