CN110808802A - An airborne FM broadcast transmission system - Google Patents
An airborne FM broadcast transmission system Download PDFInfo
- Publication number
- CN110808802A CN110808802A CN201911169958.2A CN201911169958A CN110808802A CN 110808802 A CN110808802 A CN 110808802A CN 201911169958 A CN201911169958 A CN 201911169958A CN 110808802 A CN110808802 A CN 110808802A
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- power
- antenna
- exciter
- airborne
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005404 monopole Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0466—Fault detection or indication
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
Abstract
本发明提供一种机载调频广播发射系统，包含：机柜、控制器、第一激励器、第二激励器、切换器、第一功率放大器、第二功率放大器、滤波开关组件、第一功放电源、第二功放电源、配电装置、第一天线和第二天线组成。主要应用于以大型飞机为载体的广播发射系统。系统工作在超短波频段，具有较大的发射功率和较宽的工作带宽通。系统最高输出功率高于1千瓦，实现发射信号的广域有效覆盖和局部范围内信号压制。系统除天线外，所有单元均安装在机柜内，各单元采用模块化设计，互换性好，具有自检测功能，维修方便。
The present invention provides an airborne FM broadcast transmission system, comprising: a cabinet, a controller, a first exciter, a second exciter, a switch, a first power amplifier, a second power amplifier, a filter switch assembly, and a first power amplifier power supply , a second power amplifier power supply, a power distribution device, a first antenna and a second antenna. Mainly used in broadcast transmission systems with large aircraft as the carrier. The system works in the ultra-short-wave frequency band, and has larger transmit power and wider working bandwidth. The maximum output power of the system is higher than 1 kilowatt, which can achieve wide-area effective coverage of transmitted signals and signal suppression in local areas. Except for the antenna, all units of the system are installed in the cabinet. Each unit adopts a modular design, which has good interchangeability, self-testing function and convenient maintenance.
Description
技术领域technical field
本发明属于电子通信领域，主要涉及一种机载调频广播发射系统，主要应用于飞机运载的广播发射系统中。The invention belongs to the field of electronic communication, and mainly relates to an airborne FM broadcast transmission system, which is mainly applied to a broadcast transmission system carried by an aircraft.
背景技术Background technique
广播系统作为一种建设时间相对较早，覆盖范围广的通信系统，早已成为社会生活中重要的媒体传播手段。由于其系统技术的成熟、建设成本的低廉，布设速度快捷等优点，即使在移动互联网的高度发达的今天，依旧是重要的大众媒体传播系统。As a communication system with relatively early construction and wide coverage, broadcasting system has already become an important means of media communication in social life. Due to its mature system technology, low construction cost, fast deployment and other advantages, even in today's highly developed mobile Internet, it is still an important mass media communication system.
广播系统的特点是单工单向传输信息，由一个广播发射机对外发射信号，信号覆盖范围内的广播接收机均可接收到相应的信息。这种单工单向的体制缺点就是当广播发射机无法正常工作时，其覆盖区域内的用户将无法接收到信息。目前的广播系统主要是由地面布设的发射机和用户的接收机组成，该系统是在发生自然灾害时极易出现系统失能的问题。例如：一个区域发生强烈地震，造成地面电力供应中断，该区域的广播发射机因失去电力供应停机无法广播，导致区域内所有用户均无法接收到光播信号，严重影响灾区人员获取救援信息。The characteristic of broadcasting system is simplex one-way transmission of information. A broadcasting transmitter transmits signals to the outside world, and broadcasting receivers within the coverage of the signal can receive the corresponding information. The disadvantage of this simplex and one-way system is that when the broadcast transmitter fails to work normally, users within its coverage area will not be able to receive information. The current broadcasting system is mainly composed of transmitters arranged on the ground and receivers of users. The system is prone to system failure when natural disasters occur. For example, a strong earthquake occurred in an area, causing the ground power supply to be interrupted. The broadcast transmitter in the area was shut down due to the loss of power supply and could not broadcast. As a result, all users in the area could not receive the optical broadcast signal, which seriously affected the disaster area personnel to obtain rescue information.
发明内容SUMMARY OF THE INVENTION
本发明的任务是提出一种系统工作在超短波频段，具有较大的发射功率和较宽的工作带宽通，互换性好的一种机载调频广播发射系统。The task of the present invention is to propose an airborne FM broadcast transmission system that works in the ultra-short wave frequency band, has larger transmission power and wider working bandwidth, and has good interchangeability.
本发明是通过以下技术方案实施的，其特征在于：包括控制器，第一激励器，第一功放电源，第一功率放大器，切换器，滤波开关组件，第二天线，第一天线，第二激励器，第二功率放大器，第二功放电源，所述控制器输出端分别与第一激励器、切换器、第二激励器的输入端相连接，所述第一激励器输出端与第一功率放大器输入端相连接，所述切换器输出端分别与第一功率放大器、第二功率放大器、滤波开关组件输入端相连接，所述第二激励器输出端与第二功率放大器输出端相连接，所述滤波开关组件输出端分别与第一天线、第二天线输入端相连接，所述第一功率放大器输入端与第一功放电源输出端相连接，所述第二功率放大器输入端与第二功放电源输出端相连接。The present invention is implemented through the following technical solutions, and is characterized in that it includes a controller, a first exciter, a first power amplifier power supply, a first power amplifier, a switch, a filter switch component, a second antenna, a first antenna, a second The exciter, the second power amplifier, the second power amplifier power supply, the output end of the controller is respectively connected with the input end of the first exciter, the switcher and the second exciter, the output end of the first exciter is connected with the first exciter The input end of the power amplifier is connected, the output end of the switcher is respectively connected with the input end of the first power amplifier, the second power amplifier and the filter switch assembly, and the output end of the second exciter is connected with the output end of the second power amplifier , the output end of the filter switch assembly is respectively connected with the first antenna and the second antenna input end, the first power amplifier input end is connected with the output end of the first power amplifier power supply, and the second power amplifier input end is connected with the first power amplifier input end. The output terminals of the two power amplifiers are connected to each other.
本广播发射系统除第一天线、第二天线外，所述控制器、第一激励器、第一功放电源、第一功率放大器、切换器、滤波开关组件、第二激励器、第二功率放大器是安装在机柜内，由配电装置提供电源，将输入的机载28V直流电源转换为工作需要的电源，工作频段为360MHz~470MHz，所述机柜的两侧面内部设置有液冷管道，配电装置，机柜的底层设置有液冷管道，且机柜采用机柜42U标准机柜，深度为800mm。In addition to the first antenna and the second antenna in the broadcast transmission system, the controller, the first exciter, the first power amplifier power supply, the first power amplifier, the switch, the filter switch assembly, the second exciter, the second power amplifier It is installed in the cabinet, and the power distribution device provides power. It converts the input airborne 28V DC power into the power required for work. The working frequency band is 360MHz~470MHz. The two sides of the cabinet are provided with liquid cooling pipes. The bottom of the cabinet is equipped with liquid cooling pipes, and the cabinet adopts a 42U standard cabinet with a depth of 800mm.
所述控制器能够通过其面板上的按键对系统进行本地配置或通过光纤网络接入机载综控实现远程配置，控制器面板配置有5英寸OLED显示屏，能够实时显示系统工作状态，系统工作状态通过网络传送至机载综控，控制器内部核心处理器芯片采用ARM架构的STM32H743Z1型处理器，控制器向调制器发送本地预存的播报信息或向调制器转发机载综控编辑的播报信息，所述播报信息为数字信号。The controller can configure the system locally through the buttons on its panel or connect to the onboard integrated control through an optical fiber network to achieve remote configuration. The controller panel is equipped with a 5-inch OLED display screen, which can display the working status of the system in real time. The status is transmitted to the airborne integrated control through the network. The core processor chip in the controller adopts the STM32H743Z1 type processor of the ARM architecture. The controller sends the locally pre-stored broadcast information to the modulator or forwards the broadcast information edited by the airborne integrated control to the modulator. , the broadcast information is a digital signal.
所述第一激励器和第二激励器对控制器输入的播报信息，进行调频处理，将调制后的射频信号分别输出给第一功率放大器和第二功率放大器，且第一、第二激励器内部采用芯片AD9773为主的数模转换电路，为接收数字播报信息进行数模转换。The first exciter and the second exciter perform frequency modulation processing on the broadcast information input by the controller, and output the modulated radio frequency signals to the first power amplifier and the second power amplifier respectively, and the first and second exciters The digital-to-analog conversion circuit based on chip AD9773 is used internally to perform digital-to-analog conversion for receiving digital broadcast information.
所述第一功率放大器和第二功率放大器通过功率放大和功率合成最高输出功率高于2千瓦。The maximum output power of the first power amplifier and the second power amplifier is higher than 2 kilowatts through power amplification and power synthesis.
切换器根据接收的通道选择指令向相应的功率放大器发送开启指令，向滤波器开关组件发送通道选择指令，根据发射频点向滤波开关组件发送滤波频段选择指令，选通相应频段的滤波通道，切换器接收滤波开关组件反馈回的输出功率耦合信号，并对信号进行采样判决，当输出功率耦合信号超出或低于系统设定的阈值范围，会主动关闭该通道发射，并向控制器上报发射功率异常信息。The switcher sends an opening command to the corresponding power amplifier according to the received channel selection command, sends a channel selection command to the filter switch component, sends a filter frequency band selection command to the filter switch component according to the transmission frequency, selects the filter channel of the corresponding frequency band, and switches The receiver receives the output power coupling signal fed back by the filter switch component, and samples the signal for judgment. When the output power coupling signal exceeds or falls below the threshold range set by the system, it will actively close the channel transmission and report the transmission power to the controller. Exception information.
所述滤波开关组件内部由多组滤波器和一个射频开关和两个定向耦合器组成，采用分段滤波，在有放滤波带宽360MHz~470MHz内每5MHz分为一段，每段采取不同的功率基准，保证输出功率的平坦度，实现对想要频段信号的滤波。The filter switch assembly is composed of multiple groups of filters, a radio frequency switch and two directional couplers. Segmented filtering is used. Within the filter bandwidth of 360MHz~470MHz, each 5MHz is divided into sections, and each section adopts a different power reference. , to ensure the flatness of the output power and realize the filtering of the desired frequency band signal.
所述第一天线和第二天线将射频信号辐射至外部空间，且第一天线和第二天线选用刀型单极子天线，极化方式为垂直极化。The first antenna and the second antenna radiate the radio frequency signal to the external space, and the first antenna and the second antenna use a blade monopole antenna, and the polarization mode is vertical polarization.
本发明具有以下效果：系统工作在超短波频段，具有较大的发射功率和较宽的工作带宽通，系统最高输出功率可达1千瓦，具备信号的广域有效覆盖和局部范围内信号压制能力。系统除天线外，所有单元均安装在机柜内，各单元采用模块化设计，互换性好，具有自检测功能，维修方便。The invention has the following effects: the system works in the ultra-short wave frequency band, has larger transmission power and wider working bandwidth, the highest output power of the system can reach 1 kilowatt, and has wide-area effective signal coverage and signal suppression capability in local areas. Except for the antenna, all units of the system are installed in the cabinet. Each unit adopts a modular design, with good interchangeability, self-testing function, and convenient maintenance.
附图说明Description of drawings
图1是本发明的发射系统的结构示意图。FIG. 1 is a schematic structural diagram of a transmitting system of the present invention.
图面说明：1、控制器，2、第一激励器，3、第一功放电源，4、第一功率放大器，5、切换器，6、滤波开关组件，7、第二天线，8、第一天线，9、第二激励器，10、第二功率放大器，11、第二功放电源。Description of drawings: 1. Controller, 2. First exciter, 3. First power amplifier power supply, 4. First power amplifier, 5. Switcher, 6. Filter switch assembly, 7. Second antenna, 8. No. An antenna, 9, a second exciter, 10, a second power amplifier, 11, a second power amplifier power supply.
具体实施方式Detailed ways
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.
本发明提供一种机载调频广播发射系统，该以不小于1000W的功率发射，将载有特定音频节目的调频信号，通过安装在机身的第一、第二天线向目标区域播发，实现目标区域信息覆盖的目的。The invention provides an airborne FM broadcast transmission system, which transmits with a power of not less than 1000W, and broadcasts the FM signal carrying a specific audio program to the target area through the first and second antennas installed on the fuselage to achieve the goal. The purpose of area information coverage.
如图1所示，包括控制器1，第一激励器2，第一功放电源3，第一功率放大器4，切换器5，滤波开关组件6，第二天线7，第一天线8，第二激励器9，第二功率放大器10，第二功放电源11，所述控制器输出端分别与第一激励器、切换器、第二激励器的输入端相连接，所述第一激励器输出端与第一功率放大器输入端相连接，所述切换器输出端分别与第一功率放大器、第二功率放大器、滤波开关组件输入端相连接，所述第二激励器输出端与第二功率放大器输出端相连接，所述滤波开关组件输出端分别与第一天线、第二天线输入端相连接，所述第一功率放大器输入端与第一功放电源输出端相连接，所述第二功率放大器输入端与第二功放电源输出端相连接。As shown in FIG. 1, it includes a controller 1, a
本广播发射系统除第一天线、第二天线外，所述控制器、第一激励器、第一功放电源、第一功率放大器、切换器、滤波开关组件、第二激励器、第二功率放大器是安装在机柜内，由配电装置提供电源，将输入的机载28V直流电源转换为工作需要的电源，工作频段为360MHz~470MHz。所述机柜的两侧面内部设置有液冷管道，配电装置，机柜的底层设置有液冷管道，目的是实现系统的高效散热。且机柜采用机柜42U标准机柜，深度为800mm。In addition to the first antenna and the second antenna in the broadcast transmission system, the controller, the first exciter, the first power amplifier power supply, the first power amplifier, the switch, the filter switch assembly, the second exciter, the second power amplifier It is installed in the cabinet, and the power supply is provided by the power distribution device, which converts the input airborne 28V DC power into the power required for work, and the working frequency band is 360MHz~470MHz. The two sides of the cabinet are internally provided with liquid cooling pipes and power distribution devices, and the bottom layer of the cabinet is provided with liquid cooling pipes, in order to achieve efficient heat dissipation of the system. And the cabinet adopts a 42U standard cabinet with a depth of 800mm.
所述配电装置按输入的+28V机载直流电分别转换输出以下电源：一路隔离的+28V电源至第一功放电源；一路隔离的+28V电源至第二功放电源，一路隔离的+5V至滤波开关组件；一路隔离的+28V至切换器、第一激励器、第二激励器和控制器。上述设计能够有效保证功率放大器的电源不会对系统其它部件电源造成干扰。The power distribution device converts and outputs the following power sources according to the input +28V airborne direct current: one isolated +28V power supply to the first power amplifier power supply; one isolated +28V power supply to the second power amplifier power supply, one isolated +5V power supply to the filter Switch assembly; one isolated +28V to switcher, first actuator, second actuator and controller. The above design can effectively ensure that the power supply of the power amplifier will not interfere with the power supply of other components of the system.
所述控制器能够通过其面板上的按键对系统进行本地配置，也能够通过光纤网络接入机载综控实现远程配置。控制器面板配置有5英寸OLED显示屏，能够实时显示系统工作状态，系统工作状态也能够通过网络传送至机载综控，控制器内部核心处理器芯片采用ARM架构的STM32H743Z1型处理器。控制器可向调制器发送本地预存的播报信息，也可向调制器转发机载综控编辑的播报信息，所述播报信息为数字信号。The controller can locally configure the system through the buttons on its panel, and can also access the airborne integrated control through an optical fiber network to realize remote configuration. The controller panel is equipped with a 5-inch OLED display screen, which can display the working status of the system in real time, and the working status of the system can also be transmitted to the airborne integrated control through the network. The core processor chip inside the controller adopts the STM32H743Z1 processor of the ARM architecture. The controller can send locally pre-stored broadcast information to the modulator, and can also forward the broadcast information edited by the airborne comprehensive control to the modulator, where the broadcast information is a digital signal.
所述第一激励器和第二激励器对控制器输入的播报信息，进行调频处理，将调制后的射频信号分别输出给第一功率放大器和第二功率放大器，且第一、第二激励器内部采用芯片AD9773为主的数模转换电路，为接收数字播报信息进行数模转换。The first exciter and the second exciter perform frequency modulation processing on the broadcast information input by the controller, and output the modulated radio frequency signals to the first power amplifier and the second power amplifier respectively, and the first and second exciters The digital-to-analog conversion circuit based on chip AD9773 is used internally to perform digital-to-analog conversion for receiving digital broadcast information.
所述第一功率放大器和第二功率放大器通过功率放大和功率合成最高输出功率高于2千瓦。The maximum output power of the first power amplifier and the second power amplifier is higher than 2 kilowatts through power amplification and power synthesis.
所述切换器切换器根据接收的通道选择指令向相应的功率放大器发送开启指令，向滤波器开关组件发送通道选择指令。根据发射频点向滤波开关组件发送滤波频段选择指令，选通相应频段的滤波通道。切换器接收滤波开关组件反馈回的输出功率耦合信号，并对信号进行采样判决，当输出功率耦合信号超出或低于系统设定的阈值范围，会主动关闭该通道发射，并向控制器上报发射功率异常信息。The switcher The switcher sends a turn-on command to the corresponding power amplifier according to the received channel selection command, and sends a channel selection command to the filter switch assembly. According to the transmission frequency point, the filter frequency band selection command is sent to the filter switch component, and the filter channel of the corresponding frequency band is selected. The switcher receives the output power coupling signal fed back by the filter switch component, and makes a sampling decision on the signal. When the output power coupling signal exceeds or falls below the threshold range set by the system, it will actively close the channel transmission and report the transmission to the controller. Power exception information.
所述滤波开关组件内部由多组滤波器和一个射频开关和两个定向耦合器组成，采用分段滤波，在有放滤波带宽360MHz~470MHz内每5MHz分为一段，每段采取不同的功率基准，保证输出功率的平坦度，实现对想要频段信号的滤波。The filter switch assembly is composed of multiple groups of filters, a radio frequency switch and two directional couplers. Segmented filtering is used. Within the filter bandwidth of 360MHz~470MHz, each 5MHz is divided into sections, and each section adopts a different power reference. , to ensure the flatness of the output power and realize the filtering of the desired frequency band signal.
所述第一天线和第二天线将射频信号辐射至外部空间，且第一天线和第二天线选用刀型单极子天线，极化方式为垂直极化。The first antenna and the second antenna radiate the radio frequency signal to the external space, and the first antenna and the second antenna use a blade monopole antenna, and the polarization mode is vertical polarization.
所述第一、第二激励器是相同的，所述第一、第二功率放大器是相同的，所述第一、第二功放电源是相同的，所述第一、第二天线是相同的，上述相同的激励器、相同的功率放大器、相同的功放电源、相同的天线构成互为备份的双发射通道。The first and second exciters are the same, the first and second power amplifiers are the same, the first and second power amplifier power sources are the same, and the first and second antennas are the same , the same exciter, the same power amplifier, the same power amplifier power supply, and the same antenna form the dual transmission channels that are mutually backup.
本技术方案提供一种机载调频广播发射系统，包含：机柜、控制器、第一激励器、第二激励器、切换器、第一功率放大器、第二功率放大器、滤波开关组件、第一功放电源、第二功放电源、配电装置、第一天线和第二天线组成。主要应用于以大型飞机为载体的广播发射系统。系统工作在超短波频段，具有较大的发射功率和较宽的工作带宽通。系统最高输出功率高于1千瓦，实现发射信号的广域有效覆盖和局部范围内信号压制。系统除天线外，所有单元均安装在机柜内，各单元采用模块化设计，互换性好，具有自检测功能，维修方便。The technical solution provides an airborne FM broadcast transmission system, including: a cabinet, a controller, a first exciter, a second exciter, a switch, a first power amplifier, a second power amplifier, a filter switch assembly, and a first power amplifier It consists of a power supply, a second power amplifier power supply, a power distribution device, a first antenna and a second antenna. Mainly used in broadcast transmission systems with large aircraft as the carrier. The system works in the ultra-short wave frequency band, and has a large transmit power and a wide working bandwidth. The maximum output power of the system is higher than 1 kilowatt, which can achieve wide-area effective coverage of transmitted signals and signal suppression in local areas. Except for the antenna, all units of the system are installed in the cabinet. Each unit adopts a modular design, with good interchangeability, self-testing function, and convenient maintenance.
本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接，可以是两个元件内部的连通。对于本领域的普通人员而言，可以根据具体情况理解上述术语在本发明的具体含义。In the present invention, unless otherwise expressly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or an integral connection, which may be communication within the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911169958.2A CN110808802A (en) | 2019-11-26 | 2019-11-26 | An airborne FM broadcast transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911169958.2A CN110808802A (en) | 2019-11-26 | 2019-11-26 | An airborne FM broadcast transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110808802A true CN110808802A (en) | 2020-02-18 |
Family
ID=69491274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911169958.2A Pending CN110808802A (en) | 2019-11-26 | 2019-11-26 | An airborne FM broadcast transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110808802A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746490A (en) * | 2021-09-10 | 2021-12-03 | 维沃移动通信有限公司 | Radio frequency structure and electronic equipment |
| CN114389625A (en) * | 2020-10-19 | 2022-04-22 | 华为技术有限公司 | Transmission system, transmission signal switching method, medium, and user equipment |
| CN115515351A (en) * | 2022-09-22 | 2022-12-23 | 安徽华东光电技术研究所有限公司 | S-band 500W power amplifier |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406421Y (en) * | 2000-03-15 | 2000-11-15 | 杭州众力传输设备有限公司 | Frequency-modulation synchronous broadcasting network transmitter |
| CN2718907Y (en) * | 2004-03-05 | 2005-08-17 | 南京理工科技园股份有限公司 | Ultrashort wave H network radio station |
| CN1878298A (en) * | 2006-04-20 | 2006-12-13 | 上海交通大学 | Machine-carried wireless broadband image transmission system |
| CN101115041A (en) * | 2007-08-21 | 2008-01-30 | 安徽省广播电视科研所 | Multi-frequency FM transmitter |
| CN201369737Y (en) * | 2009-03-13 | 2009-12-23 | 谭大勋 | Wired frequency-modulation broadcasting transmit-receive system |
| CN102843155A (en) * | 2012-07-17 | 2012-12-26 | 星辰先创通信系统(厦门)有限公司 | Construction method of intermediate- and low-power integrated broadcasting transmitter drawer |
| CN103220268A (en) * | 2013-03-01 | 2013-07-24 | 上海交通大学 | Airborne ultrashort wave multimedia communication system |
| CN105960766A (en) * | 2014-02-04 | 2016-09-21 | 紧急警告系统有限公司 | Information communication system |
| CN106571836A (en) * | 2016-10-26 | 2017-04-19 | 武汉大学 | Frequency-modulated radio transmitting system and frequency-modulated radio transmitting method |
| CN107231204A (en) * | 2017-05-19 | 2017-10-03 | 吉林省广播电视研究所(吉林省新闻出版广电局科技信息中心) | Frequency modulation broadcasting multi-path digital modulating system |
| CN107567257A (en) * | 2017-09-26 | 2018-01-09 | 北京无线电测量研究所 | A kind of modularization self-loopa liquid cold cabinet for airborne closed environment |
| CN108075844A (en) * | 2016-11-17 | 2018-05-25 | 中兴通讯股份有限公司 | Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method |
| CN109951246A (en) * | 2019-01-18 | 2019-06-28 | 六安富华智能信息科技有限公司 | A kind of visualization of emergent broadcast big data shows system |
| CN210518352U (en) * | 2019-11-26 | 2020-05-12 | 中兵通信科技股份有限公司 | Airborne frequency modulation broadcast transmitting system |
-
2019
- 2019-11-26 CN CN201911169958.2A patent/CN110808802A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406421Y (en) * | 2000-03-15 | 2000-11-15 | 杭州众力传输设备有限公司 | Frequency-modulation synchronous broadcasting network transmitter |
| CN2718907Y (en) * | 2004-03-05 | 2005-08-17 | 南京理工科技园股份有限公司 | Ultrashort wave H network radio station |
| CN1878298A (en) * | 2006-04-20 | 2006-12-13 | 上海交通大学 | Machine-carried wireless broadband image transmission system |
| CN101115041A (en) * | 2007-08-21 | 2008-01-30 | 安徽省广播电视科研所 | Multi-frequency FM transmitter |
| CN201369737Y (en) * | 2009-03-13 | 2009-12-23 | 谭大勋 | Wired frequency-modulation broadcasting transmit-receive system |
| CN102843155A (en) * | 2012-07-17 | 2012-12-26 | 星辰先创通信系统(厦门)有限公司 | Construction method of intermediate- and low-power integrated broadcasting transmitter drawer |
| CN103220268A (en) * | 2013-03-01 | 2013-07-24 | 上海交通大学 | Airborne ultrashort wave multimedia communication system |
| CN105960766A (en) * | 2014-02-04 | 2016-09-21 | 紧急警告系统有限公司 | Information communication system |
| CN106571836A (en) * | 2016-10-26 | 2017-04-19 | 武汉大学 | Frequency-modulated radio transmitting system and frequency-modulated radio transmitting method |
| CN108075844A (en) * | 2016-11-17 | 2018-05-25 | 中兴通讯股份有限公司 | Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method |
| CN107231204A (en) * | 2017-05-19 | 2017-10-03 | 吉林省广播电视研究所(吉林省新闻出版广电局科技信息中心) | Frequency modulation broadcasting multi-path digital modulating system |
| CN107567257A (en) * | 2017-09-26 | 2018-01-09 | 北京无线电测量研究所 | A kind of modularization self-loopa liquid cold cabinet for airborne closed environment |
| CN109951246A (en) * | 2019-01-18 | 2019-06-28 | 六安富华智能信息科技有限公司 | A kind of visualization of emergent broadcast big data shows system |
| CN210518352U (en) * | 2019-11-26 | 2020-05-12 | 中兵通信科技股份有限公司 | Airborne frequency modulation broadcast transmitting system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389625A (en) * | 2020-10-19 | 2022-04-22 | 华为技术有限公司 | Transmission system, transmission signal switching method, medium, and user equipment |
| CN114389625B (en) * | 2020-10-19 | 2023-06-27 | 华为技术有限公司 | Transmitting system, transmitting signal switching method, medium and user equipment |
| CN113746490A (en) * | 2021-09-10 | 2021-12-03 | 维沃移动通信有限公司 | Radio frequency structure and electronic equipment |
| CN115515351A (en) * | 2022-09-22 | 2022-12-23 | 安徽华东光电技术研究所有限公司 | S-band 500W power amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8768416B2 (en) | Communication system, apparatus and method | |
| CN101836496B (en) | Method and apparatus for transitioning between multi-sector omni-base station configuration and multi-sector base station configuration | |
| CN110808802A (en) | An airborne FM broadcast transmission system | |
| CN210693937U (en) | 5G indoor distribution system | |
| WO2008117973A1 (en) | Microwave repeater system for wireless network | |
| JP2002033691A (en) | Active reflector and wireless data communication system | |
| US7221906B2 (en) | Distributed multi-drop base station/repeating unit using extension of analog optical transmission in mobile communication system | |
| US20230396284A1 (en) | Signal transceiving device, signal amplification device, and operation method of communication system | |
| CN102572860A (en) | Realization method for indoor distribution system, indoor distribution system and corresponding equipment | |
| CN210518352U (en) | Airborne frequency modulation broadcast transmitting system | |
| CN215871424U (en) | Optical fiber radio frequency signal zooming device | |
| CN108736904A (en) | A kind of novel VSAT receivers and transmitter | |
| CN102036257A (en) | Digital frequency shift companding system | |
| CN118483657A (en) | S-band high-power phased array transmitting system | |
| CN101132216B (en) | Microwave repeater station and communication method based on SCDMA microwave repeater station | |
| CN214429537U (en) | A relay device and relay system | |
| CN102204402B (en) | Base station equipment and signal transmission method thereof | |
| CN105882975B (en) | A kind of time division emission receives the radio station configuration covered all around simultaneously | |
| CN204669346U (en) | A kind of lightning protection multiple-frequency signal emitter | |
| CN201904922U (en) | Digital frequency shift companding system | |
| CN105188160A (en) | GSM-R special distributed base station for railways | |
| JP3192255U (en) | Broadcast signal conversion transmission apparatus and broadcast reception system | |
| CN204669347U (en) | A kind of multiple-frequency signal emitter | |
| KR200406676Y1 (en) | Repeater control and monitoring device | |
| KR101969017B1 (en) | Low power satellite communication system and method usable in disaster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |