CN112666548A - Method, device and system for determining working mode of speed measuring responder - Google Patents
Method, device and system for determining working mode of speed measuring responder Download PDFInfo
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Abstract
The invention provides a method, a device and a system for determining a working mode of a speed measuring responder, wherein the method comprises the following steps: acquiring telemetry data received by ground telemetry equipment in real time, and processing to obtain the flight speed of the first rocket; obtaining Doppler frequency information calculated by ground speed measuring equipment based on a downlink signal of a transponder and ballistic measurement data of a pulse radar in real time, and determining the flight speed of a second rocket corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data; and (3) making difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and determining the working mode with a relatively small difference value as the working mode of the transponder at the current moment. The method comprehensively utilizes the characteristics of the speed measurement signal and the existing conditions such as the rocket-borne navigation information, does not need additional prior information or input conditions, and has the advantages of high judgment accuracy, strong real-time property, simple method and higher engineering application value.
Description
Technical Field
The invention relates to the technical field of aerospace measurement and control, in particular to a method, a device and a system for determining a working mode of a speed measuring transponder.
Background
In the space launching task, the measurement and control system is responsible for a carrier rocket trajectory measurement task and determines the flying position and speed of the rocket in real time. The continuous wave speed measurement system is an important means for obtaining high-precision speed measurement data of the rocket, and the measurement process is completed by matching the rocket dual-frequency continuous wave speed measurement transponder with ground high-precision speed measurement equipment. The speed measuring responder has two working modes of response and beacon, when the responder locks the uplink signal and transmits coherently, the responder works in a response mode, otherwise, the responder works in a beacon working mode, and when the responder works in the response working mode, the signal output by the responder represents the rate of change of the two-way distance between a transmitting station, the responder and a receiving station; in beacon mode, the output signal of the transponder is indicative of the rate of change of one-way distance between the transponder and the receiving station. Therefore, when the ground is calculated, the correct working mode of the transponder needs to be known, so that the correct rocket flying speed can be obtained.
In signals received by the ground high-precision speed measurement equipment, no mark or data representing the working mode of the transponder exists, and a method for judging the working mode of the speed measurement transponder in real time is needed, so that the correct use of the speed measurement data is ensured, the correct solution of the rocket flight trajectory is ensured, and an accurate basis is provided for rocket flight state judgment, fault decision and command organization. However, the existing judging method has complex process and low accuracy.
Disclosure of Invention
Based on this, embodiments of the present invention provide a method, an apparatus, and a system for determining a working mode of a speed measurement transponder, so as to solve the problems in the prior art that a method for determining a working mode of a speed measurement transponder is complex in process and low in accuracy.
In a first aspect of the embodiments of the present invention, a method for determining a working mode of a speed measurement transponder is provided, including:
acquiring telemetering data received by ground telemetering equipment in real time, and processing the telemetering data to obtain the flight speed of a first rocket;
the method comprises the steps that Doppler frequency information calculated by ground speed measuring equipment based on a downlink signal of a transponder is obtained in real time, ballistic measurement data of a pulse radar are obtained in real time, and second rocket flight speed corresponding to each working mode of the speed measuring transponder is determined according to the Doppler frequency information and the ballistic measurement data;
and making difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and determining the working mode with a relatively small difference as the working mode of the transponder at the current moment.
Optionally, the determining, according to the doppler frequency information and the ballistic measurement data, a second rocket flight speed corresponding to each operating mode of the velocity measurement transponder includes:
and resolving the ballistic measurement data and the Doppler frequency information based on two forms of one-way distance change rate and two-way distance change rate to obtain second rocket flight speeds in two forms corresponding to each working mode of the speed measurement transponder.
Optionally, the determining, by taking a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode, that the operating mode with a relatively small difference is the operating mode of the transponder at the current time includes:
the step of making the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode and the working mode with a relatively small difference value is carried out for preset times;
and if the conclusions of the preset times are consistent, determining the working mode with the relatively small difference as the working mode of the responder at the current moment.
Optionally, after the operating mode that the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode is relatively small is determined as the operating mode of the transponder at the current time, the method further includes:
obtaining Doppler frequency information of a plurality of ground speed measuring devices, and comparing the Doppler frequency information of the ground speed measuring devices at the current moment with the Doppler frequency information at the previous moment;
judging whether the working mode of the responder at the current moment is changed compared with the working mode of the responder at the previous moment or not according to the comparison result;
and determining the working mode of the responder at the current moment according to the judgment result.
Optionally, the obtaining doppler frequency information of a plurality of ground speed measurement devices, and comparing the doppler frequency information of the plurality of ground speed measurement devices at the current time with the doppler frequency information of the previous time includes:
if the Doppler frequency information of the ground speed measuring devices at the current moment is compared with the Doppler frequency information at the previous moment, and the preset number of Doppler frequency information is changed, the working mode of the responder is changed;
or, the doppler frequency information of the ground speed measuring devices at the current moment is not changed from the doppler frequency information at the previous moment, and the working mode of the transponder is not changed.
Optionally, after the operating mode that the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode is relatively small is determined as the operating mode of the transponder at the current time, the method further includes:
and calculating the rocket flight trajectory information based on the working mode of the transponder at the current moment.
In a second aspect of the embodiments of the present invention, a device for determining a working mode of a speed measurement transponder is provided, including:
the first speed resolving module is used for acquiring telemetering data received by ground telemetering equipment in real time and processing the telemetering data to obtain a first rocket flight speed;
the second speed resolving module is used for acquiring Doppler frequency information calculated by ground speed measuring equipment based on a downlink signal of the transponder in real time, acquiring ballistic measurement data of the pulse radar in real time, and determining second rocket flight speed corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data;
and the working mode determining module is used for making a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the transponder at the current moment.
In a third aspect of the embodiments of the present invention, there is provided a device for determining an operating mode of a speed measuring transponder, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor, when executing the computer program, implements the steps of the method for determining an operating mode of a speed measuring transponder according to any one of the methods provided in the first aspect of the embodiments.
In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, where the computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the steps of the method for determining the operating mode of any one of the speed measuring transponders provided in the first aspect of the embodiments.
In a fifth aspect of the embodiments of the present invention, a system for determining a working mode of a speed measurement transponder is provided, including:
the ground telemetering equipment is used for receiving telemetering data and sending the telemetering data to the command control center;
the ground speed measuring equipment is used for receiving a downlink signal of the responder, calculating Doppler frequency information according to the downlink signal and sending the Doppler frequency information to the command control center;
the pulse radar is used for receiving ballistic measurement data and sending the ballistic measurement data to the command control center;
the command control center is used for processing the telemetering data to obtain a first rocket flying speed and determining a second rocket flying speed corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data;
the command control center is further configured to make a difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the transponder at the current moment.
Compared with the prior art, the method, the device and the system for determining the working mode of the speed measuring responder have the beneficial effects that:
firstly, telemetering data received by ground telemetering equipment, Doppler frequency information calculated by the ground speed measuring equipment based on a downlink signal of a transponder and ballistic measurement data of a pulse radar are obtained in real time, then, a first rocket flight speed is obtained through processing according to the telemetering data, and a second rocket flight speed corresponding to each working mode of the speed measuring transponder is determined according to the Doppler frequency information and the ballistic measurement data, namely, the present embodiment comprehensively utilizes the existing conditions of the characteristics of the speed measuring signal, rocket-borne navigation information and the like, and does not need additional prior information or input conditions; and finally, the difference is made between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the responder at the current moment, so that the method is high in judgment accuracy, strong in real-time performance, simple and high in engineering application value.
Drawings
Fig. 1 is a schematic flow chart illustrating an implementation process of a method for determining a working mode of a speed measuring transponder according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a rocket velocity measurement system according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of the initial operation mode determination of the transponder according to the embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating the determination of the subsequent operating mode of the transponder according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for determining an operating mode of a speed measuring transponder according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another device for determining an operating mode of a speed measuring transponder according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Referring to fig. 1, an implementation flow diagram of an embodiment of the method for determining the operating mode of the speed measurement transponder provided in this embodiment is detailed as follows:
and S101, acquiring telemetering data received by the ground telemetering equipment in real time, and processing the telemetering data to obtain the flight speed of the first rocket.
In practical application, the speed measuring transponder comprises two working modes of answering and beacon, when the transponder locks an uplink signal and coherently forwards, the transponder works in an answering mode, otherwise, the transponder works in a beacon working mode, and when the transponder works in the answering working mode, a signal output by the transponder represents a two-way distance change rate between a transmitting station, the transponder and a receiving station; in beacon mode, the output signal of the transponder is indicative of the rate of change of one-way distance between the transponder and the receiving station. In the embodiment, the current working mode of the responder is continuously judged by using the rocket-borne navigation information and the frequency characteristics of the speed measurement signals in different modes.
Illustratively, the ground telemetry equipment receives telemetry data including rocket-borne navigation information, and sends the telemetry data to the command control center of this embodiment, and the command control center processes the telemetry data to obtain the rocket-borne navigation information, that is, the first rocket flight speed.
Step S102, Doppler frequency information calculated by ground speed measuring equipment based on a downlink signal of a transponder is obtained in real time, ballistic measurement data of a pulse radar are obtained in real time, and a second rocket flying speed corresponding to each working mode of the speed measuring transponder is determined according to the Doppler frequency information and the ballistic measurement data.
Illustratively, a plurality of sets of ground high-precision speed measuring equipment (ground speed measuring equipment) receive a downlink signal of a speed measuring transponder, calculate doppler frequency information according to the downlink signal and send the doppler frequency information to the command control center of the embodiment; and the pulse radar transmits the received ballistic measurement data to a command control center. The command control center of this embodiment combines the ballistic measurement data of the pulse radar and the doppler frequency information obtained by the multiple sets of high-precision velocity measurement devices, and calculates the rocket flight speed according to two modes, i.e., determines the second rocket flight speed corresponding to each working mode of the velocity measurement transponder.
Optionally, the specific implementation process of determining the flight speed of the second rocket corresponding to each operating mode of the velocity measurement transponder according to the doppler frequency information and the ballistic measurement data in step S102 may include:
and resolving the ballistic measurement data and the Doppler frequency information based on two forms of one-way distance change rate and two-way distance change rate to obtain second rocket flight speeds in two forms corresponding to each working mode of the speed measurement transponder.
When the speed measurement transponder is in a response working mode, the signal output by the transponder represents the two-way distance change rate between the transmitting station and the transponder and between the receiving stations, and when the speed measurement transponder is in a beacon working mode, the signal output by the transponder represents the one-way distance change rate between the transponder and the receiving stations. Here, the values of the one-way distance change rate and the two-way distance change rate may be obtained by converting the doppler frequency of the high-precision speed measurement device, and the values of the one-way distance change rate and the two-way distance change rate may be equal, but there are two possibilities of the physical meaning of the value, one is as the one-way distance change rate, and the other is as the two-way distance change rate, so that the calculated second rocket flight speed is also two, one is the second rocket flight speed in the response operation mode, and the other is the second rocket flight speed in the beacon operation mode.
Step S103, making a difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and determining the working mode with a relatively small difference as the working mode of the responder at the current moment.
Optionally, the step S103 of making a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode, and determining the operating mode with a relatively small difference as the operating mode of the transponder at the current time includes:
the step of making the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode and the working mode with a relatively small difference value is carried out for preset times; and if the conclusions of the preset times are consistent, determining the working mode with the relatively small difference as the working mode of the responder at the current moment.
For example, when the current working mode of the speed measurement transponder is determined, the current working mode of the speed measurement transponder may be continuously determined for 5 times, that is, 5 times of telemetry data, doppler frequency information and ballistic measurement data are obtained, 5 times of first rocket flight speed and second rocket flight speed are calculated, and then the step of the working mode in which the difference between the first rocket flight speed and the second rocket flight speed corresponding to each working mode is relatively small is performed for 5 times, if the determination result is consistent, the working mode in which the difference is relatively small is determined as the working mode of the transponder at the current time, and meanwhile, the working mode may also be used as an initial value for determining the working mode at the next time.
In one embodiment, after the operating mode with a relatively small difference between the first rocket flying speed and the second rocket flying speed corresponding to each operating mode is determined as the operating mode of the transponder at the current moment, the method further includes:
the method comprises the steps of obtaining Doppler frequency information of a plurality of ground speed measuring devices, and comparing the Doppler frequency information of the ground speed measuring devices at the current moment with the Doppler frequency information of the ground speed measuring devices at the previous moment.
And judging whether the working mode of the responder at the current moment is changed compared with the working mode of the responder at the previous moment or not according to the comparison result.
And finally, determining the working mode of the responder at the current moment according to the judgment result.
After the working mode of the responder at the current moment is determined, the working mode at the moment can be used as an initial working mode for judging the working mode at the next moment, so that the judgment process is simplified. Specifically, after receiving the doppler frequency information sent by each high-precision speed measuring device, the command control center compares the doppler frequency information of each measuring station at the current moment with the previous moment, comprehensively uses the comparison results of the doppler information of all devices to judge whether the work mode of the responder changes when the current moment is compared with the previous moment, and then determines the work mode at the current moment by taking the determined initial work mode as the work mode at the previous moment. For example, the initial operating mode is a response operating mode, and when the doppler frequency information at the current time is changed from the previous time, the transponder operating mode at the current time is also changed from the previous time, so that the transponder operating mode at the current time may be determined as a beacon operating mode. The working mode of the answering machine at each subsequent moment can be continuously judged according to the process of the method, the process is simple, and the judgment speed is high.
Optionally, the obtaining doppler frequency information of a plurality of ground speed measurement devices, and comparing the doppler frequency information of the plurality of ground speed measurement devices at the current time with the doppler frequency information of the previous time includes:
if the Doppler frequency information of the ground speed measuring devices at the current moment is compared with the Doppler frequency information at the previous moment, and the preset number of Doppler frequency information is changed, the working mode of the responder is changed;
or, the doppler frequency information of the ground speed measuring devices at the current moment is not changed from the doppler frequency information at the previous moment, and the working mode of the transponder is not changed.
Specifically, when the working modes of the answering machine at the two moments before and after are compared, if the doppler frequency information of part of the equipment in the doppler frequency information sent by all the equipment is subjected to mutation, the working mode of the answering machine is changed; if the Doppler frequency information sent by all the devices is not mutated, the working mode of the responder is not changed.
In one embodiment, after the step of determining the operating mode of the transponder at the current time as the operating mode of the transponder by making the difference between the first rocket flying speed and the second rocket flying speed corresponding to each operating mode, where the difference is relatively small, the step of:
and calculating the rocket flight trajectory information based on the working mode of the transponder at the current moment.
The embodiment provides a real-time judgment method for the working mode of the transponder based on the Doppler frequency characteristic, the working mode of the speed measurement transponder at the current moment is determined by utilizing the mutual difference between the rocket flight speed calculated by the rocket-borne satellite navigation data and the rocket flight speed calculated by the continuous wave speed measurement system, the existing conditions such as the characteristic of a speed measurement signal and rocket-borne navigation information are comprehensively utilized, no additional prior information or input conditions are needed, and the judgment accuracy is high; the speed of each station at the current moment can be compared with the speed of each station at the next moment, the transponder working mode at the next moment is judged based on the numerical relation of Doppler frequencies in different modes, and the continuous judgment of the transponder working mode at the subsequent moment is realized according to the mode, so that the method is strong in real-time performance, simple in process and high in engineering application value.
For example, the following describes the implementation flow of the method of this embodiment with reference to each device of the transponder operating mode determining system, specifically as follows:
in a launching task of a certain carrier rocket, a pulse radar, a high-precision speed measuring device (ground speed measuring device) and a satellite navigation means are adopted to provide ballistic measurement support for the rocket, wherein the pulse radar can measure the ballistic position of the rocket, the high-precision speed measuring device measures the flight speed of the rocket (needs to be solved by utilizing position information in a combined mode), and the satellite navigation means provides ballistic position and speed information. And the rocket is provided with a pulse transponder, a continuous wave speed measurement transponder and a satellite navigation receiver.
The ground high-precision speed measurement device is a multi-station combined working system, in this embodiment, 1 frequency master station and 3 secondary stations are designed, the master station transmits an uplink signal, and both the master station and the secondary stations can receive a downlink signal, as shown in fig. 2, fig. 2 includes 1 secondary station, but the description of the method of this embodiment should not be influenced. If the dual-frequency speed measurement transponder receives an uplink signal sent by the frequency master station, after coherent forwarding, the transponder is in a response working mode, and the velocity corresponding to the Doppler frequency acquired by the frequency master station is at the moment
The Doppler frequencies obtained by the 3 secondary stations correspond to speeds of
Wherein
Respectively the radial distance change rates between the rocket and the main station and between the 3 auxiliary stations; if the rocket-borne speed-measuring transponder incoherently forwards the uplink signal, the transponder is in a beacon working mode, at the moment, the Doppler frequency acquired by the main station and the Doppler frequency acquired by the 3 secondary stations are respectively calculated as the speed
Further, the transponder operation mode is determined in real time during the rocket flight, as shown in fig. 3. Firstly, the initial working mode of the transponder is determined, namely the working mode of the speed measuring transponder at the current moment is determined for the first time. Receiving telemetering data containing rocket-borne navigation information by using ground telemetering equipment, processing by a command control center to obtain rocket navigation positioning result data, and calculating first rocket flying speed V0。
4 sets of ground speed measuring equipment (comprising a frequency main station and a secondary station) send Doppler frequency information toAnd the pulse radar sends the ballistic measurement data to the command control center. Assuming that the responder is in the beacon working mode, the command control center respectively provides speed information according to 4 sets of speed measuring equipment
Resolving with pulse radar to obtain the second rocket flying speed V1(ii) a Assuming that the answering machine is in the answering working mode, the command control center respectively provides speed information according to 4 sets of speed measuring equipment
Resolving with pulse radar to obtain the second rocket flying speed V2。
Will V1、V2Respectively with V0Making a comparison if V1And V0If the deviation is relatively small, the working mode of the responder is a beacon working mode, otherwise, the working mode of the responder is a response working mode, continuous comparison is carried out for 5 times, and if the comparison result is consistent, the result is the initial state of the working mode of the responder; otherwise until 5 consecutive times a consistent result was obtained.
Subsequent transponder operating modes are then determined on successive iterations. As shown in fig. 4, after determining the initial state of the operation mode of the transponder, the operation mode of the transponder at the current time is continuously determined by comparing the change of the operation mode of the transponder at the current time with that at the previous time. Specifically, the command control center receives doppler frequency information sent by 4 sets of high-precision speed measuring equipment, for example, the current time distance change rate obtained by each speed measuring equipment is compared with the last time distance change rate of the equipment, and when at least 2 sets of equipment in the comparison results of the 4 sets of equipment have sudden change compared with the last time data, the working mode is determined to be changed; otherwise, the last time state is used in the working mode. According to the strategy, the working mode of the subsequent time can be continuously judged, the method is simple, and the judgment speed is high.
In the method for determining the working mode of the speed measuring transponder, firstly, telemetering data received by ground telemetering equipment, Doppler frequency information calculated by the ground speed measuring equipment based on a downlink signal of the transponder and ballistic measurement data of a pulse radar are obtained in real time, then, a first rocket flying speed is obtained through processing according to the telemetering data, and a second rocket flying speed corresponding to each working mode of the speed measuring transponder is determined according to the Doppler frequency information and the ballistic measurement data, namely, the working mode of the rocket-mounted speed measuring transponder is determined in real time by comprehensively utilizing the characteristics of the speed measuring signal, rocket-mounted navigation information and other existing conditions, and the accuracy and correctness of the calculated rocket flying speed are ensured without depending on external information; and finally, the difference is made between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the responder at the current moment, so that the method is high in judgment accuracy, strong in real-time performance, simple and high in engineering application value.
It should be understood by those skilled in the art that the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Corresponding to the method for determining the operating mode of the speed measurement transponder described in the above embodiments, this embodiment provides a device for determining the operating mode of the speed measurement transponder. Specifically, fig. 5 is a schematic structural diagram of the device for determining the operating mode of the speed measurement transponder in this embodiment. For convenience of explanation, only the portions related to the present embodiment are shown.
The device for determining the working mode of the speed measuring transponder mainly comprises: a first speed solution module 110, a second speed solution module 120, and an operating mode determination module 130.
The first speed resolving module 110 is configured to obtain telemetry data received by the ground telemetry device in real time, and process the telemetry data to obtain a first rocket flight speed.
The second speed calculation module 120 is configured to obtain doppler frequency information calculated by the ground speed measurement device based on a downlink signal of the transponder in real time, obtain ballistic measurement data of the pulse radar in real time, and determine a second rocket flight speed corresponding to each operating mode of the speed measurement transponder according to the doppler frequency information and the ballistic measurement data.
The working mode determining module 130 is configured to make a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode, and determine a working mode with a relatively small difference as the working mode of the transponder at the current time.
The device for determining the working mode of the speed measuring transponder acquires telemetering data received by ground telemetering equipment, Doppler frequency information calculated by the ground speed measuring equipment based on a downlink signal of the transponder and ballistic measurement data of a pulse radar in real time, then obtains a first rocket flight speed according to the telemetering data, and determines a second rocket flight speed corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data, namely, the embodiment comprehensively utilizes the characteristics of the speed measuring signal and the existing conditions such as rocket-borne navigation information and the like, and does not need additional prior information or input conditions; and finally, the difference is made between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the responder at the current moment, so that the method is high in judgment accuracy, strong in real-time performance, simple and high in engineering application value.
The embodiment also provides another device 100 for determining the operating mode of the speed measuring transponder, such as a command control center. As shown in fig. 6, the device 100 for determining the operation mode of the speed measuring transponder of this embodiment includes: a processor 140, a memory 150 and a computer program 151 stored in said memory 150 and executable on said processor 160, for example a program for a method for determining an operating mode of a transponder.
The processor 140 implements the steps in the above-mentioned method for determining the operation mode of the speed measuring transponder when executing the computer program 151 on the memory 150, such as the steps 101 to 103 shown in fig. 1. Alternatively, the processor 140, when executing the computer program 151, implements the functions of each module/unit in the above-described device embodiments, such as the functions of the modules 110 to 130 shown in fig. 5.
Illustratively, the computer program 151 may be partitioned into one or more modules/units that are stored in the memory 150 and executed by the processor 140 to implement the present invention. The one or more modules/units may be a series of instruction segments of a computer program capable of performing specific functions, and the instruction segments are used for describing the execution process of the computer program 151 in the apparatus for determining an operation mode of a transponder 100. For example, the computer program 151 may be divided into the first speed calculation module 110, the second speed calculation module 120, and the operation mode determination module 130, and the specific functions of each module are as follows:
the first speed resolving module 110 is configured to obtain telemetry data received by the ground telemetry device in real time, and process the telemetry data to obtain a first rocket flight speed.
The second speed calculation module 120 is configured to obtain doppler frequency information calculated by the ground speed measurement device based on a downlink signal of the transponder in real time, obtain ballistic measurement data of the pulse radar in real time, and determine a second rocket flight speed corresponding to each operating mode of the speed measurement transponder according to the doppler frequency information and the ballistic measurement data.
The working mode determining module 130 is configured to make a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode, and determine a working mode with a relatively small difference as the working mode of the transponder at the current time.
The device 100 for determining the operation mode of the speed measuring transponder can include, but is not limited to, the processor 140 and the memory 150. It will be understood by those skilled in the art that fig. 6 is only an example of the device 100 for determining the operation mode of the transponder, and does not constitute a limitation of the device 100 for determining the operation mode of the transponder, and may include more or less components than those shown, or combine some components, or different components, for example, the device 100 for determining the operation mode of the transponder may further include an input-output device, a network access device, a bus, etc.
The Processor 140 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 150 may be an internal storage unit of the device 100 for determining the operation mode of the transponder, such as a hard disk or a memory of the device 100 for determining the operation mode of the transponder. The memory 150 may also be an external storage device of the apparatus for determining an operating mode 100 of the speed measuring transponder, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are equipped on the apparatus for determining an operating mode 100 of the speed measuring transponder. Further, the memory 170 may also include both an internal memory unit and an external memory device of the apparatus for determining the operation mode 100 of the transponder. The memory 150 is used to store the computer program and other programs and data required by the device 100 for determining the operation mode of the transponder. The memory 150 may also be used to temporarily store data that has been output or is to be output.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and models are merely illustrated as being divided, and in practical applications, the foregoing functional allocations may be performed by different functional units and modules as needed, that is, the internal structure of the device may be divided into different functional units or modules to perform all or part of the above described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
Corresponding to the method for determining the operating mode of the speed measuring transponder described in the above embodiment, this embodiment further provides a system for determining the operating mode of the speed measuring transponder. The system for determining the working mode of the speed measuring transponder mainly comprises: ground telemetering equipment, ground speed measuring equipment, a pulse radar and a command control center.
The ground telemetering equipment is used for receiving telemetering data and sending the telemetering data to the command control center; the ground speed measuring equipment is used for receiving a downlink signal of the responder, calculating Doppler frequency information according to the downlink signal and sending the Doppler frequency information to the command control center; and the pulse radar is used for receiving ballistic measurement data and sending the ballistic measurement data to the command control center.
The command control center is used for processing the telemetering data to obtain a first rocket flying speed and determining a second rocket flying speed corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data; the command control center is further configured to make a difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the transponder at the current moment.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A method for determining the working mode of a speed measuring transponder is characterized by comprising the following steps:
acquiring telemetering data received by ground telemetering equipment in real time, and processing the telemetering data to obtain the flight speed of a first rocket;
the method comprises the steps that Doppler frequency information calculated by ground speed measuring equipment based on a downlink signal of a transponder is obtained in real time, ballistic measurement data of a pulse radar are obtained in real time, and second rocket flight speed corresponding to each working mode of the speed measuring transponder is determined according to the Doppler frequency information and the ballistic measurement data;
and making difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and determining the working mode with a relatively small difference as the working mode of the transponder at the current moment.
2. The method for determining the operation mode of the velocity measuring transponder according to claim 1, wherein the determining the second rocket flight speed corresponding to each operation mode of the velocity measuring transponder according to the doppler frequency information and the ballistic measurement data comprises:
and resolving the ballistic measurement data and the Doppler frequency information based on two forms of one-way distance change rate and two-way distance change rate to obtain second rocket flight speeds in two forms corresponding to each working mode of the speed measurement transponder.
3. The method for determining the operating mode of a speed-measuring transponder according to claim 1, wherein the step of determining the operating mode of the transponder at the current time by making a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode, wherein the operating mode with a relatively small difference is determined as the operating mode of the transponder at the current time comprises:
the step of making the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode and the working mode with a relatively small difference value is carried out for preset times;
and if the conclusions of the preset times are consistent, determining the working mode with the relatively small difference as the working mode of the responder at the current moment.
4. The method for determining the operating mode of a speed-measuring transponder according to claim 1, wherein after the operating mode in which the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode is relatively small is determined as the operating mode of the transponder at the current time, the method further comprises:
obtaining Doppler frequency information of a plurality of ground speed measuring devices, and comparing the Doppler frequency information of the ground speed measuring devices at the current moment with the Doppler frequency information at the previous moment;
judging whether the working mode of the responder at the current moment is changed compared with the working mode of the responder at the previous moment or not according to the comparison result;
and determining the working mode of the responder at the current moment according to the judgment result.
5. The method for determining the operating mode of the velocity measurement transponder according to claim 4, wherein the obtaining the doppler frequency information of a plurality of ground velocity measurement devices and comparing the doppler frequency information of a plurality of ground velocity measurement devices at the current time with the doppler frequency information of the ground velocity measurement device at the previous time comprises:
if the Doppler frequency information of the ground speed measuring devices at the current moment is compared with the Doppler frequency information at the previous moment, and the preset number of Doppler frequency information is changed, the working mode of the responder is changed;
or, the doppler frequency information of the ground speed measuring devices at the current moment is not changed from the doppler frequency information at the previous moment, and the working mode of the transponder is not changed.
6. The method for determining the operating mode of a speed-measuring transponder according to claim 1, wherein after the operating mode in which the difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each operating mode is relatively small is determined as the operating mode of the transponder at the current time, the method further comprises:
and calculating the rocket flight trajectory information based on the working mode of the transponder at the current moment.
7. A device for determining the operation mode of a speed measuring transponder is characterized by comprising:
the first speed resolving module is used for acquiring telemetering data received by ground telemetering equipment in real time and processing the telemetering data to obtain a first rocket flight speed;
the second speed resolving module is used for acquiring Doppler frequency information calculated by ground speed measuring equipment based on a downlink signal of the transponder in real time, acquiring ballistic measurement data of the pulse radar in real time, and determining second rocket flight speed corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data;
and the working mode determining module is used for making a difference between the flight speed of the first rocket and the flight speed of the second rocket corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the transponder at the current moment.
8. Device for determining the operating mode of a transponder for measuring speed, comprising a memory, a processor and a computer program stored in said memory and executable on said processor, characterized in that said processor, when executing said computer program, carries out the steps of a method for determining the operating mode of a transponder for measuring speed according to any one of claims 1 to 6.
9. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the method for determining an operating mode of a tacho transponder according to any one of claims 1 to 6.
10. A system for determining the operating mode of a speed measuring transponder is characterized by comprising:
the ground telemetering equipment is used for receiving telemetering data and sending the telemetering data to the command control center;
the ground speed measuring equipment is used for receiving a downlink signal of the responder, calculating Doppler frequency information according to the downlink signal and sending the Doppler frequency information to the command control center;
the pulse radar is used for receiving ballistic measurement data and sending the ballistic measurement data to the command control center;
the command control center is used for processing the telemetering data to obtain a first rocket flying speed and determining a second rocket flying speed corresponding to each working mode of the speed measuring transponder according to the Doppler frequency information and the ballistic measurement data;
the command control center is further configured to make a difference between the first rocket flying speed and the second rocket flying speed corresponding to each working mode, and the working mode with a relatively small difference is determined as the working mode of the transponder at the current moment.
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