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Linear optimization method of multi-modulation microwave system emission link

A transmission link and microwave system technology, applied in multi-carrier systems, wireless communications, electrical components, etc., can solve problems such as difficult to meet technical requirements, achieve good technical scalability, reduce linear pressure, and good scalability

Active Publication Date: 2013-03-06
波达通信设备(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the market demand of continuous power increase, it is difficult to meet the technical requirements even with high specification devices

Method used

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  • Linear optimization method of multi-modulation microwave system emission link
  • Linear optimization method of multi-modulation microwave system emission link
  • Linear optimization method of multi-modulation microwave system emission link

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Embodiment

[0029] Such as figure 1 As shown, the radio frequency link of the microwave system of the present invention includes an intermediate frequency unit, a microwave unit and a control circuit; wherein the control circuit includes an intermediate frequency power control circuit, a radio frequency power control circuit and an MCU. The intermediate frequency unit includes an intermediate frequency amplifier A1, an electric adjustable attenuator ATT1, an intermediate frequency amplifier A2, a power splitter D1, an upconverter M1, a radio frequency amplifier A3 and a bandpass filter F1 connected in sequence; the electric adjustable attenuator ATT1, two The equal power divider D1 is respectively connected with the intermediate frequency output power control circuit. The microwave unit includes sequentially connected up-converter M2, band-pass filter F2, drive amplifier A4, and electric-tunable attenuator ATT2; the electric-tunable attenuator ATT2 is connected to the radio frequency powe...

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Abstract

The invention discloses a linear optimization method of a multi-modulation microwave system emission link. When carrying out power switching, an output power of an intermediate frequency unit is adjusted: a difference of emission powers of a modulation mode is set as Delta P, a difference of output powers of the intermediate frequency unit before and after switching is set as Delta P', and a relation between Delta P and Delta P' is Delta P equals to Delta P'. According to the invention, through dynamically adjusting the output powers of the intermediate frequency unit, an over-high situation of the output powers of the intermediate frequency unit is avoided, linear pressure of each device of a microwave unit is reduced, the method has good ductility to different microwave frequency ranges, and a requirement of a future technical increment is satisfied.

Description

technical field [0001] The invention relates to microwave communication technology, in particular to a linear optimization method for a transmission link of a multi-modulation microwave system. Background technique [0002] With the development of large-capacity microwave communication systems, microwave communication systems have higher and higher requirements for the linearity of radio frequency links. At the same time, with the development of adaptive modulation technology, it is required to meet the link design of low modulation, high power and high modulation at the same time. At present, the typical response method of the microwave communication system has not changed. The fixed radio frequency technology gain distribution scheme is still adopted under different modulation requirements, which increases the pressure on the linearity index of the radio frequency transmission link, and is accompanied by the increase of the modulation mode and the low modulation mode transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/36H04W52/52
Inventor 陈焱黄均明邱金欣靳盼栓黄远平
Owner 波达通信设备(广州)有限公司
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