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Frequency preset control method and device based on FPGA (Field Programmable Gate Array), medium and electronic equipment

A control method and frequency technology, applied in the field of radar communication, can solve the problems of insufficient preset accuracy and unreasonable preset.

Pending Publication Date: 2022-03-11
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the traditional frequency preset control method, the preset accuracy is not enough, the preset is unreasonable, etc., the purpose is to provide a frequency preset control method, device, medium, and electronic equipment based on FPGA to solve How to preset the frequency to make the circuit automation precise and stable control problem

Method used

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  • Frequency preset control method and device based on FPGA (Field Programmable Gate Array), medium and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1, this embodiment provides an FPGA-based frequency preset control method, the method comprising:

[0061] In the first step, (the device in Embodiment 2) is powered on as a whole, the frequency source is initialized, and the output frequency of the frequency source is configured to the initial frequency point;

[0062] The second step is to configure the register corresponding to the target frequency point pre-stored in RAM1 to the frequency source phase-locked loop;

[0063] Store the register values ​​corresponding to multiple target frequency points into RAM1;

[0064] According to the current target frequency point, configure the corresponding register to the frequency source PLL.

[0065] The configuration may take a certain amount of time, so when performing the second step, you need to configure a certain waiting time to wait for the configuration to be completely completed.

[0066] The third step is to judge whether the target frequency point is l...

Embodiment 2

[0080] This embodiment is an optimization for the first embodiment. In this embodiment, if the frequency of tuning the voltage at the target frequency point is too small, errors may occur. Therefore, this embodiment provides an optimization method.

[0081] S1. Set the number N of collection times of the tuning voltage at the target frequency point, where N=10 in this embodiment.

[0082] S2. Determine whether the tuning voltage of the target frequency point has been collected. If the collection has not been completed, it may prove that the initial frequency point is wrong, the frequency source lock is abnormal, the target frequency point is abnormal, etc., so jump to the first step and proceed again. Configuration, if the collection is still abnormal many times, an alarm will be issued;

[0083] S3. If the collection is completed, the number of collections is n+1;

[0084] S4. Judging whether n is equal to 10, if not, jumping to the second step again, performing the second a...

Embodiment 3

[0088] This embodiment provides a modular structure for implementing Embodiment 1, a frequency preset control device based on FPGA, including an initial module, a first configuration module, a determination module, an acquisition module, a processing module, a second configuration module and an output module.

[0089] The initial module is used to initialize the frequency source and configure the output frequency of the frequency source to the initial frequency point;

[0090] The first configuration module is used to configure the register corresponding to the target frequency point pre-stored in RAM1 to the frequency source phase-locked loop;

[0091] The judging module is used to judge whether the target frequency point is locked;

[0092] The acquisition module is used to collect the tuning voltage of the target frequency when the target frequency is locked, and store it in RAM2;

[0093] The processing module is used to establish a frequency point-tuning voltage look-up...

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Abstract

The invention discloses a frequency presetting control method and device based on an FPGA, a medium and electronic equipment, and the method comprises the steps: initializing a frequency source, configuring the output frequency of the frequency source to a starting frequency point, configuring a register corresponding to a target frequency point pre-stored in RAM1 to a frequency source phase-locked loop, judging whether the target frequency point is locked or not, and when the target frequency point is locked, starting the frequency source; a tuning voltage of a target frequency point is collected and stored in RAM2, a frequency point-tuning voltage lookup table is established and stored in RAM3, during frequency hopping, a register corresponding to a frequency hopping point is configured to a phase-locked loop, data of the frequency hopping point is configured to DA according to the frequency point-tuning voltage lookup table, the DA generates a preset tuning voltage, and frequency presetting is completed; according to the method, the frequency-tuning voltage lookup table is established, after the lookup table is established, a corresponding value is found out from the frequency-tuning voltage lookup table according to the target frequency and sent to the DA, and the value is converted into the tuning voltage, so that the purposes of quickly presetting the frequency and quickly locking are achieved.

Description

technical field [0001] The invention relates to the field of radar communication, in particular to an FPGA-based frequency preset control method, device, medium, and electronic equipment. Background technique [0002] In recent years, with the improvement of the data rate in the field of radar communication, the locking time of the phase-locked loop has increasingly become a key indicator in the design of the radar communication system. [0003] In a radar communication system, the locking time of the phase-locked loop restricts the time interval between the reception and transmission of signals by the radio frequency transceiver. In addition, in the application of frequency hopping spread spectrum communication, the faster the frequency hopping speed of the phase locked loop, the more beneficial it is to resist multipath fading and avoid interference, thereby improving the quality of data communication; [0004] In the field of military frequency hopping communication, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/18G01S7/02
CPCH03L7/18G01S7/02
Inventor 罗武孙敏朱中浩鞠英黄春燕
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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