A beacon machine for telemetry flying ball training

Abstract

The present invention discloses a beacon machine for telemetry fly ball training, including a power supply, the power supply is connected to a wide voltage circuit regulator, the wide voltage circuit regulator is connected to a first low voltage difference regulator and a second low voltage difference regulator, the first low voltage difference regulator is connected to a controller, the input end of the controller is connected to a power frequency communication serial port, the output end is connected to a variable frequency phase lock, the variable frequency phase lock is connected to an antenna for transmitting signals, the output end of the second low voltage difference regulator is respectively connected to the variable frequency phase lock and a crystal oscillator, and the crystal oscillator is connected to the variable frequency phase lock. The telemetry fly ball training beacon machine of the present application is a miniaturized, high-performance broadband, stable beacon machine module with programmable power frequency. It has high phase noise and spurious suppression characteristics, which helps to improve the spectrum purity of the transmitter to improve the sensitivity test accuracy of the receiver; at the same time, it also has high frequency stability and accuracy, as well as ultra-low phase noise characteristics.

Description

Technical Field

[0001] The invention relates to the technical field of spacecraft telemetry, in particular to a beacon machine for telemetry flying ball training. Background Art

[0002] The measurement and control system is mainly responsible for the orbit measurement, image and telemetry monitoring, remote control operation, data injection, flight control, etc. of spacecraft (rocket, satellite, etc.). It is one of the eight systems of manned space flight, one of the five systems of lunar exploration, and an indispensable part of aerospace engineering. Telemetry equipment is an important part of aerospace measurement and control equipment and the core equipment for active segment measurement of launch vehicles.

[0003] Capturing and tracking the target is a prerequisite for the telemetry equipment to demodulate the data of the target spacecraft (rocket, satellite, etc.), and it is also an important link that determines the success or failure of the mission. Therefore, in actual combat training, training telemetry dynamic target tracking is indispensable. A moving target simulator (beacon machine) with good performance is a prerequisite for improving training efficiency, so as to achieve the actual combat training purpose of testing the working status of the telemetry system and the ability of the operator. At present, in the field of aerospace measurement and control, the moving target simulator (beacon machine) used for telemetry operator training is a cardboard-type disposable external beacon machine consisting of a host, an antenna and a 9V power supply. Its host is a fixed single-point frequency working mode, with an output power of about -15dBm, an average working time of 40min, a weak signal output power and relatively large power consumption. And its working frequency is fixed and cannot be adjusted, which does not meet the needs of diversified tasks. Therefore, it is necessary to redevelop a moving target simulator (beacon) with low power consumption (working time of more than 2 hours), adjustable output power (0~-10dBm), adjustable frequency (25 MHz~3000MHz), and ensure that the frequency is far away from the mission point frequency to prevent interference with the mission point frequency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a beacon machine for remote sensing flying ball training, which can realize adjustable frequency and power, thereby ensuring that the frequency is far away from the mission point frequency and preventing the moving target simulator from interfering with the mission point frequency. In addition, the beacon machine has a simple structure and low cost, which is conducive to the promotion and application in the field of aerospace telemetry technology.

[0005] In order to solve the above technical problems, the solution of the present invention is:

[0006] A beacon machine for telemetry flying ball training includes a power supply, wherein the power supply is connected to a wide voltage circuit regulator, wherein the wide voltage circuit regulator is connected to a first low voltage difference regulator and a second low voltage difference regulator, wherein the first low voltage difference regulator is connected to a controller, wherein the input end of the controller is connected to a power frequency communication serial port, and the output end is connected to a variable frequency phase-locked device, wherein the variable frequency phase-locked device is connected to an antenna for transmitting signals, wherein the output end of the second low voltage difference regulator is respectively connected to the variable frequency phase-locked device and a crystal oscillator, wherein the crystal oscillator is connected to the variable frequency phase-locked device.

[0007] The variable frequency phase-locked device comprises a VCO voltage-controlled oscillator, a PLL phase-locked loop and an AMP power amplifier.

[0008] The power source is a 9V battery.

[0009] The wide voltage circuit regulator is a TPS63070 boost-buck converter or a TPS76333 boost-buck converter.

[0010] The first low-dropout voltage regulator and the second low-dropout voltage regulator are both ultra-low noise linear power supplies LDO.

[0011] The controller is a STM32F103 controller.

[0012] The crystal oscillator is a 40MHz / 50MHz crystal oscillator.

[0013] The antenna is provided with a 2.4 GHz broadband SMA interface for communicating with the variable frequency phase locker.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The telemetry flying ball training beacon machine of the present application is a miniaturized, programmable power and frequency beacon machine module with high performance, broadband and stable operation. Its frequency range is adjustable between 25MHz and 3000MHz, and its power range is adjustable between 0 and -10dBm. It has high phase noise and spurious suppression characteristics, which helps to improve the spectrum purity of the transmitter to improve the sensitivity test accuracy of the receiver; at the same time, it also has high frequency stability and accuracy, as well as ultra-low phase noise characteristics (-160dBc / Hz). BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the operating principle diagram of the present invention. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] like Figure 1 As shown, a beacon machine for telemetry flying ball training includes a power supply, the power supply is connected to a wide voltage circuit regulator, the wide voltage circuit regulator is connected to a first low voltage difference regulator and a second low voltage difference regulator, the first low voltage difference regulator is connected to a controller, the input end of the controller is connected to a power frequency communication serial port, the output end is connected to a variable frequency phase lock, the variable frequency phase lock is connected to an antenna for transmitting signals, the output end of the second low voltage difference regulator is respectively connected to the variable frequency phase lock and a crystal oscillator, and the crystal oscillator is connected to the variable frequency phase lock.

[0019] The variable frequency phase-locked device includes a VCO voltage-controlled oscillator, a PLL phase-locked loop and an AMP power amplifier. The VCO voltage-controlled oscillator is an important component of the RF circuit and is used to improve the resonant frequency of the oscillation circuit; the PLL phase-locked loop can achieve stable high-frequency signal output; the AMP power amplifier amplifies the output signal (adjustable from 0 to -10dB). This application uses HMC832 to achieve fast phase locking, as well as an integrated VCO voltage-controlled oscillator, a fractional-frequency PLL, ultra-low phase noise and spurious, and high harmonic suppression performance. In this application, a variable frequency phase-locked device in the VCO+PLL+AMP mode is used to help improve frequency stability and accuracy, and ensure that the tracking process is stable and reliable.

[0020] The power source is a 9V battery. In actual application, the 9V battery used by the beacon is a 9V Nanfu battery. The 9V Nanfu battery works for about 1 hour. When the voltage drops to 7.0V, the beacon signal suddenly disappears. In order to prevent the beacon from suddenly losing power and losing lock due to a drop in battery power during operation, this application uses a wide-voltage circuit regulator to ensure that the simple beacon used for telemetry fly ball training can work normally and stably when the input power fluctuates in the range of 3~9V; it can ensure that the beacon can work normally for more than 3 hours when powered by a 9V Nanfu battery. The wide-voltage circuit regulator is a TPS63070 boost-buck converter or a TPS76333 boost-buck converter.

[0021] The first low-dropout voltage regulator and the second low-dropout voltage regulator are both ultra-low noise linear power supply LDO. In the present application, the ultra-low noise linear power supply LDO is used to power the crystal oscillator, the controller, and the variable frequency phase-locked device, which can ensure the stable operation of each unit.

[0022] The controller is an STM32F103 controller. In this application, the controller is implemented by STM32F103, including functions such as frequency control, power control, program writing (burning), serial port control, power display, and output display.

[0023] The crystal oscillator is a 40MHz / 50MHz crystal oscillator, which is convenient for generating a 40MHz / 50MHz fixed frequency source.

[0024] The antenna is equipped with a 2.4GHz broadband SMA interface for connecting to the frequency conversion phase lock; The antenna is equipped with a 2.4GHz broadband SMA interface; The 2.4GHz broadband of the SMA interface has a built-in power adjustable function, which can output different powers according to needs, and the power adjustable range can reach 11dB. All indicators meet the requirements of tracking actual combat training, and the measured indicators are shown in Table 1:

[0025]

[0026] In this application, the telemetry fly ball training beacon has an SMA interface RF output port. The RS232 interface is mainly used for applications where the simple beacon module for telemetry fly ball training needs to be controlled directly through the RS232 serial port of the PC. The RS232 interface level is the standard ±12V level standard. The interface of the telemetry fly ball training beacon is shown in Table 2:

[0027]

[0028] In this application, the telemetry fly ball training beacon is powered by +9V, and the allowable load voltage is 3~16V. To ensure the performance of the beacon, a 9V Nanfu battery is used for power supply. The telemetry fly ball training beacon does not provide a separate power button. When the battery is connected, the device is powered on and can immediately enter the working state. When the battery is unplugged, the device is powered off.

[0029] In order to improve the stability, reliability and endurance of the beacon machine, this application adopts a wide voltage range switching circuit for the power supply part to ensure that the beacon machine can work normally and stably when the input power fluctuates in the range of 3~9V. In order to improve the frequency stability and accuracy and ensure the stability and reliability of the tracking process, the VCO+PLL mode is used to improve the frequency stability. In order to achieve the adjustable frequency and power of the beacon machine, a serial communication interface is reserved for users to adjust.

[0030] The application principle of the present application is as follows: the power supply is supplied to the wide voltage circuit regulator, and after the wide voltage circuit regulator regulates and stabilizes the voltage, the regulated and stabilized power supply is then supplied to the first low voltage difference regulator and the second low voltage difference regulator respectively, and then the stabilized power supply of the first low voltage difference regulator is supplied to the controller; at the same time, the stabilized power supply of the second low voltage difference regulator is supplied to the variable frequency phase lock and the crystal oscillator, and the crystal oscillator provides a 40MHz / 50MHz frequency source for the variable frequency phase lock for up-conversion. After the controller is connected to the power supply, it can be connected to the PC through the communication serial port to realize the beacon machine power, frequency control and other parameter program writing, the controller controls the frequency source and power supply signal to be input to the variable frequency phase lock, realizes up-conversion and phase locking, and outputs a stable beacon signal, and after amplification, the set beacon signal is transmitted to space through the antenna, and the ground telemetry receives the beacon signal to achieve the purpose of tracking measurement training.

[0031] The telemetry flying ball training beacon machine of the present application is a miniaturized, programmable power and frequency beacon machine module with high performance, broadband and stable operation. Its frequency range is adjustable between 25MHz and 3000MHz, and its power range is adjustable between 0 and -10dBm. It has high phase noise and spurious suppression characteristics, which helps to improve the spectrum purity of the transmitter to improve the sensitivity test accuracy of the receiver; at the same time, it also has high frequency stability and accuracy, as well as ultra-low phase noise characteristics (-160dBc / Hz).

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A telemetering beacon for flying ball training, characterized in that: It includes a power supply, the power supply is connected to a wide voltage circuit regulator, the wide voltage circuit regulator is connected to a first low voltage dropout regulator and a second low voltage dropout regulator, the first low voltage dropout regulator is connected to a controller, the input end of the controller is connected to a power frequency communication serial port, the output end is connected to a variable frequency phase-locked device, the variable frequency phase-locked device is connected to an antenna for transmitting signals, the output end of the second low voltage dropout regulator is respectively connected to the variable frequency phase-locked device and a crystal oscillator, the crystal oscillator is connected to the variable frequency phase-locked device; the variable frequency phase-locked device includes a VCO voltage-controlled oscillator, a PLL phase-locked loop and an AMP power amplifier; the antenna is configured with a 2.4 GHz broadband SMA interface for connecting to the variable frequency phase-locked device.

2. The telemetry beacon for flying ball training according to claim 1, characterized in that: The power source is a 9V battery.

3. The telemetry beacon for flying ball training according to claim 1, characterized in that: The wide voltage circuit regulator is a TPS63070 boost-buck converter or a TPS76333 boost-buck converter.

4. The telemetry beacon for flying ball training according to claim 1, characterized in that: The first low-dropout voltage regulator and the second low-dropout voltage regulator are both ultra-low noise linear power supplies LDO.

5. The telemetry beacon for flying ball training according to claim 1, characterized in that: The controller is a STM32F103 controller.

6. The telemetry beacon for flying ball training according to claim 1, characterized in that: The crystal oscillator is a 40MHz / 50MHz crystal oscillator.

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