CN116527113A - A multi-band satellite measurement and control system and method - Google Patents

A multi-band satellite measurement and control system and method Download PDF

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CN116527113A
CN116527113A CN202310543257.0A CN202310543257A CN116527113A CN 116527113 A CN116527113 A CN 116527113A CN 202310543257 A CN202310543257 A CN 202310543257A CN 116527113 A CN116527113 A CN 116527113A
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satellite signal
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CN116527113B (en
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许璟华
甘作新
张辰国
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Zhongke Ruige Yantai Technical Service Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The invention discloses a multi-band satellite measurement and control system, which comprises a relay satellite, a relay satellite and a satellite signal transmission system, wherein the relay satellite is used for receiving and forwarding multi-band satellite signals; the ground transmitting station is in communication connection with the relay satellite, the ground receiving station is in communication connection with the relay satellite, and the multi-band satellite signal frequency combining unit is in communication connection with the ground transmitting station and is used for combining a plurality of single-band satellite signals into a multi-band satellite signal; the multi-band satellite signal frequency-splitting unit is used for splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies; the satellite signal noise-increasing unit is used for carrying out noise-increasing encryption on transmission data of the single-band satellite signals; the satellite signal denoising unit is used for denoising and decrypting the transmission data of the single-band satellite signal; the multi-band lifting noise storage database is used for providing a password character string for lifting noise and denoising in the transmission data of the satellite signals. According to the invention, the confidentiality of core data information of satellite signal transmission is improved by noise rise, encryption and frequency combination of a plurality of single-band satellite signals, so that intercepted satellite signals are ensured to be difficult to crack.

Description

一种多频段卫星测控系统及方法A multi-band satellite measurement and control system and method

技术领域technical field

本发明属于卫星测控通信领域，具体来说，涉及一种多频段卫星测控系统及方法。The invention belongs to the field of satellite measurement and control communication, and in particular relates to a multi-band satellite measurement and control system and method.

背景技术Background technique

随着卫星微波通信技术的发展，对卫星通信信号的转发能力提出了越来越高的要求。特别是未来宽带通信卫星系统一个非常突出的特点是将搭载数量巨大的多波束射频天线，卫星微波通信转发技术受容量、速率、电磁干扰等限制，不能满足实际要求。With the development of satellite microwave communication technology, higher and higher requirements are put forward for the forwarding capability of satellite communication signals. In particular, a very prominent feature of the future broadband communication satellite system is that it will be equipped with a huge number of multi-beam radio frequency antennas. Satellite microwave communication forwarding technology is limited by capacity, speed, electromagnetic interference, etc., and cannot meet actual requirements.

在专利号为CN201310349986.9的中国发明专利中，公开了一种基于扩频体制的星载S频段中继用户终端系统的应用方法，包括如下步骤：步骤1，根据卫星测控需求，确定测控应答机采用的扩频体制，再进一步根据确定的扩频体制确定前向测控通道和返向测控通道的数量；步骤2，根据中继卫星运行轨道及其中继测控通道指标，设计对中继测控链路，确定对中继测控链路的中继测控天线波束宽度和增益要求，选取合适方向图的S接收天线和S发射天线；步骤3，根据步骤2中中继测控链路的增益设计结果，确定测控应答机的接收灵敏度和发射功率，选取合适的Ka/S天线，要求对中继测控通道的G/T值和EIRP值满足通信要求，同时选取合适的功率放大器；步骤4，由卫星程控或中继卫星发送指令打开功率放大器大增益通道，返向遥测信号通过S发射天线向中继卫星发送，建立返向遥测链路，地面可实时监视Ka/S链路建立过程；Ka/S天线按程序设定指向中继卫星，进行KSA(K波单址业务)、SSA(S波段单址业务)返向链路建立，在链路建立(自动跟踪)后，由卫星程控或中继卫星发送指令关闭功率放大器大增益通道，打开小增益通道，返向遥测信号通过Ka/S天线发送；步骤5，定义基于扩频体制的星载S频段中继用户终端系统的测控工作模式，中继卫星进行测控通信时按照所述工作模式要求工作。实时监控用户终端与中继卫星Ka/S链路建立过程，提高了应急测控能力。在减少卫星配置、节约卫星资源、降低卫星成本等方面取得了有益效果。In the Chinese invention patent with the patent number CN201310349986.9, an application method of the satellite-borne S-band relay user terminal system based on the spread spectrum system is disclosed, including the following steps: Step 1. Determine the measurement and control response according to the satellite measurement and control requirements The spread spectrum system adopted by the machine, and then further determine the number of forward measurement and control channels and return measurement and control channels according to the determined spread spectrum system; step 2, according to the relay satellite orbit and relay measurement and control channel indicators, design the relay measurement and control Determine the relay measurement and control antenna beamwidth and gain requirements for the relay measurement and control link, and select the S receiving antenna and S transmitting antenna with a suitable pattern; step 3, according to the gain design result of the relay measurement and control link in step 2, Determine the receiving sensitivity and transmission power of the measurement and control transponder, select a suitable Ka/S antenna, require the G/T value and EIRP value of the relay measurement and control channel to meet the communication requirements, and select a suitable power amplifier at the same time; step 4, by satellite program control Or the relay satellite sends an instruction to open the large gain channel of the power amplifier, and the return telemetry signal is sent to the relay satellite through the S transmitting antenna to establish a return telemetry link, and the ground can monitor the Ka/S link establishment process in real time; the Ka/S antenna Point to the relay satellite according to the program, and establish KSA (K-wave single-access service) and SSA (S-band single-access service) return links. After the link is established (automatic tracking), the satellite program control or relay satellite Send an instruction to close the large gain channel of the power amplifier, open the small gain channel, and send the return telemetry signal through the Ka/S antenna; step 5, define the measurement and control working mode of the spaceborne S-band relay user terminal system based on the spread spectrum system, and the relay When the satellite performs measurement and control communication, it works according to the requirements of the working mode. Real-time monitoring of the establishment process of the Ka/S link between the user terminal and the relay satellite improves the emergency measurement and control capability. Beneficial effects have been achieved in reducing satellite configuration, saving satellite resources, and reducing satellite costs.

现有专利中的缺陷在于，虽然实现了实时监控用户终端与中继卫星Ka/S链路建立过程，提高了应急测控能力。但多频段卫星信号一旦被截获，容易获取其核心数据信息。The defect in the existing patents is that although real-time monitoring of the establishment process of the Ka/S link between the user terminal and the relay satellite is realized, the emergency measurement and control capability is improved. However, once the multi-band satellite signal is intercepted, it is easy to obtain its core data information.

发明内容Contents of the invention

针对现有多频段卫星信号一旦被截获，容易获取其核心数据信息的问题，本发明提供了一种多频段卫星测控系统及方法。Aiming at the problem that the core data information of the existing multi-band satellite signal is easily obtained once it is intercepted, the present invention provides a multi-band satellite measurement and control system and method.

为实现上述技术目的，本发明采用的技术方案如下：For realizing above-mentioned technical purpose, the technical scheme that the present invention adopts is as follows:

一种多频段卫星测控系统，包括中继卫星、地面发射站、地面接收站、多频段卫星信号合频单元、多频段卫星信号解频单元、卫星信号升噪单元、卫星信号解噪单元和多频段升降噪音存储数据库；A multi-band satellite measurement and control system, including a relay satellite, a ground transmitting station, a ground receiving station, a multi-band satellite signal frequency combining unit, a multi-band satellite signal defrequency unit, a satellite signal denoising unit, a satellite signal denoising unit and multiple Frequency band up and down noise storage database;

中继卫星用于接收和转发多频段卫星信号；Relay satellites are used to receive and forward multi-band satellite signals;

地面发射站与中继卫星通讯连接，用于发射多频段卫星信号至中继卫星上；The ground transmitting station communicates with the relay satellite for transmitting multi-band satellite signals to the relay satellite;

地面接收站与中继卫星通讯连接，用于接收中继卫星转发的多频段卫星信号；The ground receiving station communicates with the relay satellite to receive multi-band satellite signals forwarded by the relay satellite;

多频段卫星信号合频单元与地面发射站通讯连接，用于将多个单频段卫星信号合成为一个多频段卫星信号，并传输至地面发射站；The multi-band satellite signal frequency combining unit is connected to the ground transmitting station for synthesizing multiple single-band satellite signals into a multi-band satellite signal and transmitting it to the ground transmitting station;

多频段卫星信号解频单元与地面接收站通讯连接，用于将多频段卫星信号分解为多个频率不同的单频段卫星信号，并传输至卫星信号解噪单元；The multi-band satellite signal defrequency unit is connected to the ground receiving station for decomposing the multi-band satellite signal into multiple single-band satellite signals with different frequencies, and transmitting them to the satellite signal denoising unit;

卫星信号升噪单元与多频段卫星信号合频单元通讯连接，用于对单频段卫星信号的传输数据进行升噪加密；The satellite signal denoising unit communicates with the multi-band satellite signal frequency combining unit, and is used for denoising and encrypting the transmission data of the single-band satellite signal;

卫星信号解噪单元与多频段卫星信号解频单元通讯连接，用于对单频段卫星信号的传输数据进行解噪去密；The satellite signal denoising unit communicates with the multi-band satellite signal defrequency unit for denoising and deciphering the transmission data of the single-band satellite signal;

多频段升降噪音存储数据库与卫星信号升噪单元和卫星信号解噪单元均设有通讯连接线路，用于对卫星信号的传输数据中升噪和解噪提供密码字符串。The multi-band lifting and lowering noise storage database, the satellite signal noise raising unit and the satellite signal denoising unit are provided with communication connection lines, which are used to provide password strings for noise raising and denoising in the satellite signal transmission data.

进一步地，所述卫星信号升噪单元采用随机插入法插入多频段升降噪音存储数据库中的密码字符串，并将密码字符串插入的卫星信号传输数据的位置信息反馈至多频段升降噪音存储数据库。Further, the satellite signal denoising unit inserts the password string in the multi-band up-and-down noise storage database by random insertion method, and feeds back the position information of the satellite signal transmission data into which the password string is inserted to the multi-band up-and-down noise storage database.

进一步地，所述卫星信号解噪单元采用字符串截取匹配查找的方式进行解噪去密，获取初始上传时的单频段卫星信号的传输数据。Further, the satellite signal denoising unit performs denoising and deciphering by means of character string interception, matching and searching, and obtains the transmission data of the single-band satellite signal at the time of initial upload.

进一步地，当单频段卫星信号仅有一个时，通过信号放大器，将单频段卫星信号扩频为多个不同频率的单频段卫星信号，再将多个单频段卫星信号合成为一个多频段卫星信号，并传输至地面发射站。Further, when there is only one single-frequency satellite signal, the single-frequency satellite signal is spread into multiple single-frequency satellite signals of different frequencies through the signal amplifier, and then multiple single-frequency satellite signals are synthesized into a multi-frequency satellite signal , and transmitted to the ground transmitting station.

进一步地，多频段卫星信号合频单元与多频段卫星信号解频单元之间设有第二通讯链路，第二通讯链路用于传输多频段卫星信号的每段卫星信号的频率；卫星信号升噪单元与卫星信号解噪单元之间设有第三通讯链路，第三通讯链路用于传输密码字符串插入的卫星信号传输数据的位置信息。Further, a second communication link is provided between the multi-band satellite signal frequency combining unit and the multi-band satellite signal defrequency unit, and the second communication link is used to transmit the frequency of each segment of the multi-band satellite signal; the satellite signal A third communication link is provided between the noise raising unit and the satellite signal denoising unit, and the third communication link is used to transmit the position information of the satellite signal transmission data into which the password character string is inserted.

一种多频段卫星测控方法，包括步骤：A multi-band satellite measurement and control method, comprising the steps of:

S1、通过地面发射站获取待发射的多个单频段卫星信号；S1. Obtain multiple single-band satellite signals to be transmitted through the ground transmitting station;

S2、对多个单频段卫星信号的传输数据进行升噪加密；S2. Noise-enhancing encryption is performed on the transmission data of multiple single-band satellite signals;

S3、将升噪加密之后的多个单频段卫星信号合成为一个多频段卫星信号，并反馈至地面发射站；S3. Synthesizing multiple single-band satellite signals after noise enhancement and encryption into a multi-band satellite signal, and feeding it back to the ground transmitting station;

S4、发射多频段卫星信号至中继卫星上；S4. Transmit multi-band satellite signals to relay satellites;

S5、地面接收站接收中继卫星转发的多频段卫星信号；S5. The ground receiving station receives the multi-band satellite signal forwarded by the relay satellite;

S6、将多频段卫星信号分解为多个频率不同的单频段卫星信号；S6. Decomposing the multi-band satellite signal into multiple single-band satellite signals with different frequencies;

S7、对单频段卫星信号的传输数据进行解噪去密；S7. Denoising and deciphering the transmission data of the single-band satellite signal;

S8、验证地面接收站解噪后的单频段卫星信号的传输数据是否与地面发射站发送的单频段卫星信号的传输数据一致，若一致则输出单频段卫星信号，若不一致进入步骤S9；S8, verify whether the transmission data of the single-band satellite signal after denoising by the ground receiving station is consistent with the transmission data of the single-band satellite signal sent by the ground transmitting station, if consistent, output the single-frequency satellite signal, and if inconsistent, enter step S9;

S9、告知用户端单频段卫星信号传输中出错。S9. Notify the user terminal of an error in the transmission of the single-band satellite signal.

本发明相比现有技术，具有如下有益效果：Compared with the prior art, the present invention has the following beneficial effects:

通过将多个单频段卫星信号升噪加密和合频，实现卫星信号传输的核心数据信息的保密性提升，确保被截获的卫星信号难以破解。By increasing the noise, encrypting and combining multiple single-band satellite signals, the confidentiality of the core data information of satellite signal transmission is improved, ensuring that the intercepted satellite signals are difficult to decipher.

附图说明Description of drawings

图1为本发明实施例一种多频段卫星测控系统的整体框架示意图；FIG. 1 is a schematic diagram of an overall framework of a multi-band satellite measurement and control system according to an embodiment of the present invention;

图2为本发明实施例一种多频段卫星测控方法的流程图。Fig. 2 is a flowchart of a multi-band satellite measurement and control method according to an embodiment of the present invention.

具体实施方式Detailed ways

为了便于本领域技术人员的理解，下面结合实施例与附图对本发明作进一步的说明，实施方式提及的内容并非对本发明的限定。In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

如图1所示，本实施例提供了一种多频段卫星测控系统，包括中继卫星、地面发射站、地面接收站、多频段卫星信号合频单元、多频段卫星信号解频单元、卫星信号升噪单元、卫星信号解噪单元和多频段升降噪音存储数据库；As shown in Figure 1, this embodiment provides a multi-band satellite measurement and control system, including a relay satellite, a ground transmitting station, a ground receiving station, a multi-band satellite signal frequency combining unit, a multi-band satellite signal defrequency unit, a satellite signal Noise raising unit, satellite signal denoising unit and multi-band lifting noise storage database;

中继卫星用于接收和转发多频段卫星信号；Relay satellites are used to receive and forward multi-band satellite signals;

地面发射站与中继卫星通讯连接，用于发射多频段卫星信号至中继卫星上；The ground transmitting station communicates with the relay satellite for transmitting multi-band satellite signals to the relay satellite;

地面接收站与中继卫星通讯连接，用于接收中继卫星转发的多频段卫星信号；The ground receiving station communicates with the relay satellite to receive multi-band satellite signals forwarded by the relay satellite;

多频段卫星信号合频单元与地面发射站通讯连接，用于将多个单频段卫星信号合成为一个多频段卫星信号，并传输至地面发射站；The multi-band satellite signal frequency combining unit is connected to the ground transmitting station for synthesizing multiple single-band satellite signals into a multi-band satellite signal and transmitting it to the ground transmitting station;

多频段卫星信号解频单元与地面接收站通讯连接，用于将多频段卫星信号分解为多个频率不同的单频段卫星信号，并传输至卫星信号解噪单元；The multi-band satellite signal defrequency unit is connected to the ground receiving station for decomposing the multi-band satellite signal into multiple single-band satellite signals with different frequencies, and transmitting them to the satellite signal denoising unit;

卫星信号升噪单元与多频段卫星信号合频单元通讯连接，用于对单频段卫星信号的传输数据进行升噪加密；The satellite signal denoising unit communicates with the multi-band satellite signal frequency combining unit, and is used for denoising and encrypting the transmission data of the single-band satellite signal;

卫星信号解噪单元与多频段卫星信号解频单元通讯连接，用于对单频段卫星信号的传输数据进行解噪去密；The satellite signal denoising unit communicates with the multi-band satellite signal defrequency unit for denoising and deciphering the transmission data of the single-band satellite signal;

多频段升降噪音存储数据库与卫星信号升噪单元和卫星信号解噪单元均设有通讯连接线路，用于对卫星信号的传输数据中升噪和解噪提供密码字符串。The multi-band lifting and lowering noise storage database, the satellite signal noise raising unit and the satellite signal denoising unit are provided with communication connection lines, which are used to provide password strings for noise raising and denoising in the satellite signal transmission data.

所述卫星信号升噪单元采用随机插入法插入多频段升降噪音存储数据库中的密码字符串，并将密码字符串插入的卫星信号传输数据的位置信息反馈至多频段升降噪音存储数据库。The satellite signal denoising unit inserts the password string in the multi-band up-and-down noise storage database by random insertion method, and feeds back the position information of the satellite signal transmission data into which the password string is inserted to the multi-band up-and-down noise storage database.

所述卫星信号解噪单元采用字符串截取匹配查找的方式进行解噪去密，获取初始上传时的单频段卫星信号的传输数据。The satellite signal denoising unit denoises and deciphers by means of character string interception, matching and searching, and obtains the transmission data of the single-band satellite signal at the time of initial upload.

当单频段卫星信号仅有一个时，通过信号放大器，将单频段卫星信号扩频为多个不同频率的单频段卫星信号，再将多个单频段卫星信号合成为一个多频段卫星信号，并传输至地面发射站。起到防止单个单频段卫星信号时容易被截取，多个不同频率的单频段卫星信号即使被截取，也难以获取其核心数据信息，核心数据信息处于混乱状态，截取人员很难获取有多个单频段卫星信号合成的一段多频段卫星信号。When there is only one single-band satellite signal, through the signal amplifier, the single-band satellite signal is spread into multiple single-band satellite signals of different frequencies, and then multiple single-band satellite signals are synthesized into a multi-band satellite signal, and transmitted to the ground launch station. It prevents a single single-band satellite signal from being easily intercepted. Even if multiple single-frequency satellite signals of different frequencies are intercepted, it is difficult to obtain its core data information. The core data information is in a state of confusion, and it is difficult for interceptors to obtain multiple single-band A segment of multi-band satellite signals synthesized by frequency-band satellite signals.

多频段卫星信号合频单元与多频段卫星信号解频单元之间设有第二通讯链路，第二通讯链路用于传输多频段卫星信号的每段卫星信号的频率；便于后续多频段卫星信号解频单元对多频段卫星信号分解为多个频率不同的单频段卫星信号。卫星信号升噪单元与卫星信号解噪单元之间设有第三通讯链路，第三通讯链路用于传输密码字符串插入的卫星信号传输数据的位置信息；便于卫星信号解噪单元验证解噪后的单频段卫星信号是否与地面发射站发送前的单频段卫星信号一致。通过传输密码字符串插入的卫星信号传输数据的位置信息删除密码字符串，验证其单频段卫星信号是否一致，同时验证包为暗码，只能验证，卫星信号解噪单端用户无法查看。There is a second communication link between the multi-band satellite signal frequency combining unit and the multi-band satellite signal defrequency unit, and the second communication link is used to transmit the frequency of each segment of the multi-band satellite signal; it is convenient for subsequent multi-band satellite signals The signal defrequency unit decomposes the multi-band satellite signal into multiple single-band satellite signals with different frequencies. A third communication link is provided between the satellite signal denoising unit and the satellite signal denoising unit, and the third communication link is used to transmit the position information of the satellite signal transmission data into which the password character string is inserted; it is convenient for the satellite signal denoising unit to verify the solution Whether the single-band satellite signal after noise is consistent with the single-band satellite signal before the ground transmitting station sends it. Delete the password string from the position information of the satellite signal transmission data inserted by the transmission password string, and verify whether the single-band satellite signal is consistent. At the same time, the verification package is a password, which can only be verified, and the satellite signal denoising single-end user cannot view it.

一种多频段卫星测控方法，包括步骤：A multi-band satellite measurement and control method, comprising the steps of:

S1、通过地面发射站获取待发射的多个单频段卫星信号；S1. Obtain multiple single-band satellite signals to be transmitted through the ground transmitting station;

S2、对多个单频段卫星信号的传输数据进行升噪加密；S2. Noise-enhancing encryption is performed on the transmission data of multiple single-band satellite signals;

S3、将升噪加密之后的多个单频段卫星信号合成为一个多频段卫星信号，并反馈至地面发射站；S3. Synthesizing multiple single-band satellite signals after noise enhancement and encryption into a multi-band satellite signal, and feeding it back to the ground transmitting station;

S4、发射多频段卫星信号至中继卫星上；S4. Transmit multi-band satellite signals to relay satellites;

S5、地面接收站接收中继卫星转发的多频段卫星信号；S5. The ground receiving station receives the multi-band satellite signal forwarded by the relay satellite;

S6、将多频段卫星信号分解为多个频率不同的单频段卫星信号；S6. Decomposing the multi-band satellite signal into multiple single-band satellite signals with different frequencies;

S7、对单频段卫星信号的传输数据进行解噪去密；S7. Denoising and deciphering the transmission data of the single-band satellite signal;

S8、验证地面接收站解噪后的单频段卫星信号的传输数据是否与地面发射站发送的单频段卫星信号的传输数据一致，若一致则输出单频段卫星信号，若不一致进入步骤S9；S8, verify whether the transmission data of the single-band satellite signal after denoising by the ground receiving station is consistent with the transmission data of the single-band satellite signal sent by the ground transmitting station, if consistent, output the single-frequency satellite signal, and if inconsistent, enter step S9;

S9、告知用户端单频段卫星信号传输中出错。S9. Notify the user terminal of an error in the transmission of the single-band satellite signal.

本发明相比现有技术，具有如下有益效果：Compared with the prior art, the present invention has the following beneficial effects:

通过将多个单频段卫星信号升噪加密和合频，实现卫星信号传输的核心数据信息的保密性提升，确保被截获的卫星信号难以破解。By increasing the noise, encrypting and combining multiple single-band satellite signals, the confidentiality of the core data information of satellite signal transmission is improved, ensuring that the intercepted satellite signals are difficult to decipher.

以上对本申请提供的一种多频段卫星测控系统及方法进行了详细介绍。具体实施例的说明只是用于帮助理解本申请的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。The above describes in detail the multi-band satellite measurement and control system and method provided by the present application. The description of specific embodiments is only used to help understand the method and core idea of the present application. It should be pointed out that those skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims (6)

1. The multi-band satellite measurement and control system is characterized by comprising a relay satellite, a ground transmitting station, a ground receiving station, a multi-band satellite signal frequency combining unit, a multi-band satellite signal frequency resolving unit, a satellite signal noise raising unit, a satellite signal noise resolving unit and a multi-band noise raising and lowering storage database;
the relay satellite is used for receiving and forwarding the multi-band satellite signals;
the ground transmitting station is in communication connection with the relay satellite and is used for transmitting the multi-band satellite signals to the relay satellite;
the ground receiving station is in communication connection with the relay satellite and is used for receiving the multi-band satellite signals forwarded by the relay satellite;
the multi-band satellite signal frequency combining unit is in communication connection with the ground transmitting station and is used for combining a plurality of single-band satellite signals into a multi-band satellite signal and transmitting the multi-band satellite signal to the ground transmitting station;
the multi-band satellite signal frequency-splitting unit is in communication connection with the ground receiving station, and is used for splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies and transmitting the single-band satellite signals to the satellite signal noise-splitting unit;
the satellite signal noise rise unit is in communication connection with the multi-band satellite signal frequency combining unit and is used for carrying out noise rise encryption on transmission data of the single-band satellite signal;
the satellite signal denoising unit is in communication connection with the multi-band satellite signal denoising unit and is used for denoising and decrypting transmission data of the single-band satellite signal;
the multi-band lifting noise storage database, the satellite signal lifting noise unit and the satellite signal denoising unit are both provided with communication connection lines for providing password character strings for lifting noise and denoising in the transmission data of the satellite signals.
2. The system according to claim 1, wherein the satellite signal noise increasing unit inserts the code string into the multi-band noise increasing and decreasing storage database by using a random insertion method, and feeds back the position information of the satellite signal transmission data inserted by the code string to the multi-band noise increasing and decreasing storage database.
3. The multi-band satellite measurement and control system according to claim 2, wherein the satellite signal denoising unit performs denoising and decryption by adopting a character string interception, matching and searching mode, and obtains transmission data of the single-band satellite signal during initial uploading.
4. A multi-band satellite measurement and control system according to claim 3, wherein when there is only one single-band satellite signal, the single-band satellite signal is spread into a plurality of single-band satellite signals with different frequencies through the signal amplifier, and the plurality of single-band satellite signals are synthesized into a multi-band satellite signal and transmitted to the ground transmitting station.
5. The system according to claim 4, wherein a second communication link is arranged between the multi-band satellite signal frequency synthesizing unit and the multi-band satellite signal frequency demodulating unit, and the second communication link is used for transmitting the frequency of each band satellite signal of the multi-band satellite signals; a third communication link is arranged between the satellite signal noise-raising unit and the satellite signal noise-eliminating unit, and the third communication link is used for transmitting the position information of the satellite signal transmission data inserted by the password character string.
6. The multi-band satellite measurement and control method is characterized by comprising the following steps:
s1, acquiring a plurality of single-band satellite signals to be transmitted through a ground transmitting station;
s2, carrying out noise rise encryption on transmission data of a plurality of single-band satellite signals;
s3, synthesizing the plurality of single-band satellite signals after noise rise and encryption into a multi-band satellite signal, and feeding back the multi-band satellite signal to a ground transmitting station;
s4, transmitting the multi-band satellite signals to the relay satellite;
s5, the ground receiving station receives the multi-band satellite signals forwarded by the relay satellite;
s6, decomposing the multi-band satellite signals into a plurality of single-band satellite signals with different frequencies;
s7, denoising and decrypting the transmission data of the single-band satellite signals;
s8, verifying whether the transmission data of the single-band satellite signals after the ground receiving station is denoised are consistent with the transmission data of the single-band satellite signals sent by the ground transmitting station, outputting the single-band satellite signals if the transmission data are consistent with the transmission data of the single-band satellite signals, and entering a step S9 if the transmission data are inconsistent with the transmission data of the single-band satellite signals;
s9, informing the user of errors in the single-band satellite signal transmission.
CN202310543257.0A 2023-05-15 2023-05-15 A multi-band satellite measurement and control system and method Active CN116527113B (en)

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