Power amplifier gain control method and device, power amplifier system, storage medium and equipment

Abstract

The invention relates to a power amplifier gain control method and device, a power amplifier system, a storage medium and equipment, and the method comprises the steps: determining a first power amplifier control parameter corresponding to a power amplifier gain set value according to a preset corresponding relation between a power amplifier gain parameter of a target power amplifier and a power amplifier control parameter; determining a second power amplifier control parameter corresponding to the local oscillator frequency set value according to a preset corresponding relation between the local oscillator frequency parameter of the target power amplifier and the power amplifier control parameter; and determining a power amplifier gain control parameter of the target power amplifier according to the first power amplifier control parameter and the second power amplifier control parameter. Under the condition that the intermediate frequency signal is fixed, a power amplifier gain and alocal oscillation frequency are set; and the power amplifier gain set value and the power amplifier control parameter corresponding to the local oscillator frequency set value are determined accordingto the preset corresponding relation, so that the control process is more convenient, a modem does not need to be used for carrying out modulation processing on the intermediate frequency signal, theinfluence of external factors can be reduced, and the gain control precision is improved.

Description

technical field [0001] The present application relates to the technical field of power amplifier gain, and in particular, to a power amplifier gain control method, device, power amplifier system, storage medium and device. Background technique [0002] With the continuous in-depth development of satellite communication technology, the application of millimeter-wave satellite communication systems is becoming more and more extensive. Millimeter waves refer to electromagnetic waves with wavelengths from 10 millimeters to 1 millimeter and frequencies from 30 gigahertz (GHz) to 300 gigahertz (GHz). The method of communicating using millimeter waves is called millimeter wave communication. In the millimeter-wave satellite communication system, the millimeter-wave power amplifier is an important part. Its function is to transmit the modulated intermediate frequency signal to the antenna-feeder system after up-conversion, amplification, filtering, etc., and then send it to the sate...

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Problems solved by technology

[0003]In the traditional technology, the millimeter-wave power amplifier in the millimeter-wave satellite communication system adjusts the frequency and power of the modem under the premise of fixing the gain of the power amplifier and the frequency of the local oscillator signal. To realize the different frequencies of the transmitter and obtain the output power of the power amplifier, that is to say, before the intermediate frequency signal is processed by the power amplifier, the intermediate frequency signal needs to be modulated and processed by the modem, which makes the operation of the traditional power gain control method more cumbersome. And the control accuracy is low

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