Improved processing system and method for amplitude-frequency characteristic of signals of radio frequency system signal

A technology of amplitude-frequency characteristics and radio frequency system, which can be used in transmission systems, electrical components, etc., to solve problems such as increasing the difficulty of processing coaxial low-pass filters, and achieve the effect of improving amplitude-frequency characteristics.

Inactive Publication Date: 2020-04-21
THE FIRST RES INST OF TELECOMMTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the one hand, its transmission zero point can only be obtained theoretically; on the other hand, the process of forming a coupling capacitor by placing two low-impedance line segments close to each other will also increase the processing difficulty of the coaxial low-pass filter

Method used

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  • Improved processing system and method for amplitude-frequency characteristic of signals of radio frequency system signal
  • Improved processing system and method for amplitude-frequency characteristic of signals of radio frequency system signal
  • Improved processing system and method for amplitude-frequency characteristic of signals of radio frequency system signal

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Embodiment 1

[0046] This embodiment provides an improved processing system for the amplitude-frequency characteristics of radio frequency system signals, as shown in the attached figure 1 As shown, a system for improving the amplitude-frequency characteristics of radio frequency system signals provided in this embodiment includes a variable gain module 500, a frequency discrimination module 100, a control storage module 300, a digital-to-analog converter and an analog-to-digital converter. In an example, the digital-to-analog converter is the digital-to-analog conversion circuit 400 , and the analog-to-digital converter is the analog-to-digital conversion circuit 200 . Specifically, the input terminal of the frequency discrimination module 100 receives an input signal, the output terminal of the frequency discrimination module 100 is connected to the input terminal of the analog-to-digital conversion circuit 200; the output terminal of the analog-to-digital conversion circuit 200 is connect...

Embodiment 2

[0065] This embodiment provides an improved processing method for the amplitude-frequency characteristics of radio frequency system signals. Based on the implementation of the improved processing system for the amplitude-frequency characteristics of radio frequency system signals described in any of the above embodiments, the input terminal of the variable gain module receives input signal, the gain of the variable gain module is controlled by the analog tuning voltage, and the input signal is processed to output the signal. as attached Figure 4 shown, including the following steps,

[0066] S100: Detect the frequency of the input signal, and obtain the corresponding analog voltage.

[0067] In this embodiment, the input signal passes through the frequency discrimination module, and the frequency discrimination module detects the frequency of the input signal, and outputs an analog voltage to the analog-to-digital conversion circuit.

[0068] S200: Convert the analog voltag...

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Abstract

The invention provides an improvement processing system and method for the amplitude-frequency characteristic of signals of a radio frequency system signal. An improvement processing system for the amplitude-frequency characteristic of the radio frequency system signal comprises a variable gain module, a frequency discrimination module, a control storage module, a digital-to-analog converter and an analog-to-digital converter, the input end of the frequency discrimination module receives an input signal, and the frequency discrimination module, the digital-to-analog converter, the control storage module, the analog-to-digital converter and the variable gain module are connected in sequence. A corresponding relationship between a digital voltage value and a tuning voltage of the variable gain module is preset in the control storage module; the storage module is controlled to store the digital voltage value of the input signal; the corresponding relations between the digital voltage value and the tuning voltage of the variable gain module are retrieved, the tuning voltage corresponding to the input signal is obtained, the gain of the variable gain module is controlled, the variable gain module changes the output amplitude of the input signal according to the gain, and the amplitude-frequency characteristic of the signal is effectively improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a system and method for improving the amplitude-frequency characteristics of radio frequency system signals. Background technique [0002] In the theory of electronics, when current flows through a conductor, a magnetic field will be formed around the conductor; when an alternating current passes through a conductor, an alternating electromagnetic field will be formed around the conductor, which is called electromagnetic wave. When the electromagnetic wave frequency is lower than 100kHz, the electromagnetic wave will be absorbed by the surface and cannot form effective transmission, but when the electromagnetic wave frequency is higher than 100kHz, the electromagnetic wave can propagate in the air and be reflected by the ionosphere at the outer edge of the atmosphere to form a long-distance transmission capability . We call high-frequency electromagnetic waves wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04
CPCH04B1/04H04B2001/0416
Inventor 徐晨鸿郑肇健
Owner THE FIRST RES INST OF TELECOMMTECH
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