WO2015184757A1 - 一种航空通信系统地面装置 - Google Patents

一种航空通信系统地面装置 Download PDF

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Publication number
WO2015184757A1
WO2015184757A1 PCT/CN2014/093212 CN2014093212W WO2015184757A1 WO 2015184757 A1 WO2015184757 A1 WO 2015184757A1 CN 2014093212 W CN2014093212 W CN 2014093212W WO 2015184757 A1 WO2015184757 A1 WO 2015184757A1
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module
output
companding
duplexer
output end
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PCT/CN2014/093212
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English (en)
French (fr)
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张波
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成都福兰特电子技术有限公司
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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
    • 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

Definitions

  • the utility model relates to a ground device of an aeronautical communication system.
  • Aeronautical telecommunication a flight support service used by the aviation sector to communicate with telecommunications equipment to communicate aircraft flight dynamics, air traffic control instructions, meteorological information and air transport business information.
  • the early methods of aviation communication were mainly telegraphs, followed by telephone, teletype, fax, television, and data transmission.
  • Companding technology is an advanced audio technology in communication system design that suppresses noise and improves voice quality.
  • the input signal value range that satisfies the quantizer's quantized signal-to-noise ratio requirement is defined as the dynamic range of the quantizer.
  • the dynamic range of the telephone voice signal is about 40 dB, and the high-quality long-distance telephone communication requires that the signal-to-noise ratio of the transmission line should be at least 28 dB. If uniform quantization is used in the digitization process of the telephone voice signal, it is small. Quantifying the signal-to-noise ratio at the time of the signal is difficult to meet the requirements. It is in this current state of actual constraints that people have proposed a companding technique (logarithmic companding) that can meet the quality requirements of long-distance telephone communications.
  • the companding technique is to effectively compress the transmitted signal and then transmit it to the other end, and then spread the signal at the receiving end to maximize the signal-to-noise ratio of the system under a given modulation frequency offset.
  • Reduced ambient background noise and improved voice quality That is, while transmitting, it not only compresses the call signal, but also reduces external noise. While receiving the call signal, it expands its call signal and reduces unnecessary background noise in the receiving center. Using this technology can produce more Adding crisp, clear voices will keep you connected in a noisy environment and is very practical.
  • voice compression technology has improved the quality of walkie-talkies and improved voice quality.
  • the utility model aims to overcome the deficiencies of the prior art, and provides an aeronautical communication system ground device, which is provided with a power management circuit and a filtering module, which can perform multi-stage filtering on the received and transmitted signals to improve the ripple in the power signal.
  • the coefficient improves the quality of the power supply, ensures the stable and normal operation of the equipment, and ensures the safety of aviation communication.
  • an aeronautical communication system ground device which comprises a pressure expansion module, an uplink and downlink integrated pusher, a first duplexer, a second duplexer, a filter module, The low noise amplifier module, the high efficiency module and the power management circuit, the output ends of the companding module are respectively connected with the input end of the upper and lower integrated pusher and the input end of the high efficiency module, and the input ends of the companding module are respectively pushed together with the upper and lower sides.
  • the output end of the device is connected to the output end of the low noise amplifier module, the first duplexer is respectively connected with the uplink and downlink integrated pusher, and the base station is connected, and the second duplexer is respectively connected with the low noise amplifier module and the high efficiency module through the filter module. Connected, the second duplexer is also connected to the antenna.
  • the input end of the power management module is connected to the power supply, and the output end is respectively connected with the companding module, the uplink and downlink integrated pusher, and the high efficiency module.
  • the filter module is at least two band pass filters connected in series.
  • the power management circuit includes a transformer secondary winding T, a diode rectifier bridge composed of diodes D1 to D4, and a capacitor C1.
  • the two output ends of the transformer secondary winding T are respectively integrated with the diode.
  • the two input ends of the bridge are connected, and the two output ends of the diode rectifier bridge are respectively connected to the power output end, and the capacitor C1 is connected in parallel between the two output ends of the diode rectifier bridge.
  • the power management circuit further includes a filter capacitor C2 and a filter capacitor C3.
  • One end of the filter capacitor C2 is connected to the forward output end of the diode finishing bridge, and the other end is grounded.
  • One end of the filter capacitor C3 is connected to the negative output end of the diode finishing bridge. The other end is grounded.
  • a filter module is provided to perform multi-stage filtering on the input and output signals to ensure the clarity of the signal, ensure the accuracy of the aeronautical communication, and improve the safety factor of the aviation.
  • the power management circuit is set to improve the ripple coefficient in the power signal, improve the power supply quality, ensure the stable and normal operation of the equipment, and further ensure the safety of aviation communication.
  • Figure 1 is a block diagram of the structure of the present invention
  • FIG. 2 is a circuit diagram of a power management circuit of the present invention.
  • an aeronautical communication system ground device includes a companding module, an uplink and downlink integrated pusher, a first duplexer, a second duplexer, a filter module, a low noise amplifier module, and a high efficiency module.
  • the output end of the companding module is respectively connected with the input end of the upper and lower integrated pusher and the input end of the high-efficiency module, and the input end of the companding module is respectively connected with the output end of the push-up unit and the low noise
  • the output ends of the modules are connected, the first duplexer is connected to the uplink and downlink integrated pusher, and the base station is connected, and the second duplexer is respectively connected to the low noise amplifier module and the high efficiency module through the filter module.
  • the second duplexer is also connected to the antenna, and the input end of the power management module is connected to the power supply, and the output end is respectively connected to the companding module, the uplink and downlink integrated pusher, and the high efficiency module.
  • the filter module is at least two band pass filters connected in series.
  • the power management circuit includes a transformer secondary winding T, a diode rectifier bridge composed of diodes D1 to D4, and a capacitor C1.
  • the two output ends of the transformer secondary winding T and the diode rectifier bridge are respectively The input terminals are connected, and the two output ends of the diode rectifier bridge are respectively connected to the power output end, and the capacitor C1 is connected in parallel between the two output ends of the diode rectifier bridge.
  • the power management circuit further includes a filter capacitor C2 and a filter capacitor C3.
  • One end of the filter capacitor C2 is connected to the forward output end of the diode finishing bridge, and the other end is grounded.
  • One end of the filter capacitor C3 is connected to the negative output end of the diode finishing bridge. The other end is grounded.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

本实用新型公开了一种航空通信系统地面装置，用于处理基站输出的信号，并将处理后的信号通过天线进行发送，它包括压扩模块、上下行一体推动器、第一双工器、第二双工器、滤波模组、低噪放模块、高功效模块和电源管理电路，压扩模块的输出端分别与上下行一体推动器的输入端、高功效模块的输入端相连，压扩模块的输入端分别与上下行一体推动器的输出端、低噪放模块的输出端相连。本实用新型设置了电源管理电路和滤波模组，能够对接收和发射的信号进行多级滤波，改善电源信号中的波纹系数，提高供电质量，保证设备稳定正常的运行，保证航空通信的安全。

Description

一种航空通信系统地面装置 技术领域
本实用新型涉及一种航空通信系统地面装置。
背景技术
航空通信(aeronautical telecommunication)，航空部门之间利用电信设备进行联系，以传递飞机飞行动态、空中交通管制指示、气象情报和航空运输业务信息等的一种飞行保障业务。早期的航空通信方式主要是电报，后又出现电话、电传打字、传真、电视、数据传输等多种方式。
压扩技术是通信系统设计中的一项抑制噪声、提高话音质量的先进的音频技术。
实际通信中，将满足量化器量化信噪比要求的输入信号取值范围定义为量化器的动态范围。在电话通信中，电话语声信号的动态范围约为40dB，而高质量长途电话通信要求传输线路的信噪比至少应大于28dB，若在电话语声信号的数字化过程中采用均匀量化，在小信号时量化信噪比就很难达到要求。正是在这种实际约束现状下，人们提出了压扩技术(对数压扩)，能够满足长途电话通信的质量要求。
压扩技术是将所传输的信号被有效地压缩后再传输到另一端，在接收端信号再进行扩展，从而在给定的调制频偏下能最大限度地提高系统的信噪比，大大地降低环境背景噪声，话音质量得到了提高。即在发射的同时，它不但压缩呼叫信号，并且还降低外部的噪音。而在接收到呼叫信号的同时，它又扩展其呼收信号，减少接收中心不必要的背景噪声。采用此技术可以产生更 加清脆、清晰的话音，能使你在嘈杂的环境中仍能保持畅通的联系，很具有实用价值。语音压扩技术的使用促进了对讲机质量水平的提高，改善了语音质量。
目前航空通信所用的地点通信装置存在诸多不足之处，例如发射的信号不准确，结构复杂，成本过高，性能不稳定等，不利于航空通信的发展。
实用新型内容
本实用新型的目的在于克服现有技术的不足，提供一种航空通信系统地面装置，设置了电源管理电路和滤波模组，能够对接收和发射的信号进行多级滤波，改善电源信号中的波纹系数，提高供电质量，保证设备稳定正常的运行，保证航空通信的安全。
本实用新型的目的是通过以下技术方案来实现的：一种航空通信系统地面装置，它包括压扩模块、上下行一体推动器、第一双工器、第二双工器、滤波模组、低噪放模块、高功效模块和电源管理电路，压扩模块的输出端分别与上下行一体推动器的输入端、高功效模块的输入端相连，压扩模块的输入端分别与上下行一体推动器的输出端、低噪放模块的输出端相连，第一双工器分别与上下行一体推动器相连、基站相连，第二双工器通过滤波模组分别与低噪放模块、高功效模块相连，第二双工器还与天线相连，所述的电源管理模块的输入端与供电电源相连，输出端分别与压扩模块、上下行一体推动器、高功效模块相连。
所述的滤波模组为至少两个串联的带通滤波器。
所述的电源管理电路包括变压器次级绕组T、由二极管D1至D4组成的二极管整流桥和电容C1，变压器次级绕组T的两个输出端分别与二极管整 流桥的两个输入端相连，二极管整流桥的两个输出端分别与电源输出端相连，电容C1并联在二极管整流桥的两个输出端之间。
所述的电源管理电路还包括滤波电容C2和滤波电容C3，滤波电容C2一端与二极管整理桥的正向输出端相连，另一端接地，滤波电容C3一端与二极管整理桥的负向输出端相连，另一端接地。
本实用新型的有益效果是：
(1)设置了滤波模组，对输入输出的信号进行多级滤波，保证了信号的清晰度，确保了航空通信的准确性，提高了航空的安全系数。
(2)设置了电源管理电路，改善了电源信号中的波纹系数，提高了供电质量，保证了设备稳定正常的运行，进一步保证了航空通信的安全。
附图说明
图1为本实用新型结构框图；
图2为本实用新型电源管理电路电路图。
具体实施方式
下面结合附图进一步详细描述本实用新型的技术方案，但本实用新型的保护范围不局限于以下所述。
如图1所示，一种航空通信系统地面装置，它包括压扩模块、上下行一体推动器、第一双工器、第二双工器、滤波模组、低噪放模块、高功效模块和电源管理电路，压扩模块的输出端分别与上下行一体推动器的输入端、高功效模块的输入端相连，压扩模块的输入端分别与上下行一体推动器的输出端、低噪放模块的输出端相连，第一双工器分别与上下行一体推动器相连、基站相连，第二双工器通过滤波模组分别与低噪放模块、高功效模块相连， 第二双工器还与天线相连，所述的电源管理模块的输入端与供电电源相连，输出端分别与压扩模块、上下行一体推动器、高功效模块相连。
所述的滤波模组为至少两个串联的带通滤波器。
如图2所示，所述的电源管理电路包括变压器次级绕组T、由二极管D1至D4组成的二极管整流桥和电容C1，变压器次级绕组T的两个输出端分别与二极管整流桥的两个输入端相连，二极管整流桥的两个输出端分别与电源输出端相连，电容C1并联在二极管整流桥的两个输出端之间。
所述的电源管理电路还包括滤波电容C2和滤波电容C3，滤波电容C2一端与二极管整理桥的正向输出端相连，另一端接地，滤波电容C3一端与二极管整理桥的负向输出端相连，另一端接地。
以上所述仅是本实用新型的优选实施方式，应当理解本实用新型并非局限于本文所披露的形式，不应看作是对其他实施例的排除，而可用于各种其他组合、修改和环境，并能够在本文所述构想范围内，通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本实用新型的精神和范围，则都应在本实用新型所附权利要求的保护范围内。

Claims (4)

  1. 一种航空通信系统地面装置，用于处理基站输出的信号，并将处理后的信号通过天线进行发送，其特征在于：它包括压扩模块、上下行一体推动器、第一双工器、第二双工器、滤波模组、低噪放模块、高功效模块和电源管理电路，压扩模块的输出端分别与上下行一体推动器的输入端、高功效模块的输入端相连，压扩模块的输入端分别与上下行一体推动器的输出端、低噪放模块的输出端相连，第一双工器分别与上下行一体推动器相连、基站相连，第二双工器通过滤波模组分别与低噪放模块、高功效模块相连，第二双工器还与天线相连，所述的电源管理模块的输入端与供电电源相连，输出端分别与压扩模块、上下行一体推动器、高功效模块相连。
  2. 根据权利要求1所述的一种航空通信系统地面装置，其特征在于：所述的滤波模组为至少两个串联的带通滤波器。
  3. 根据权利要求1所述的一种航空通信系统地面装置，其特征在于：所述的电源管理电路包括变压器次级绕组T、由二极管D1至D4组成的二极管整流桥和电容C1，变压器次级绕组T的两个输出端分别与二极管整流桥的两个输入端相连，二极管整流桥的两个输出端分别与电源输出端相连，电容C1并联在二极管整流桥的两个输出端之间。
  4. 根据权利要求3所述的一种航空通信系统地面装置，其特征在于：所述的电源管理电路还包括滤波电容C2和滤波电容C3，滤波电容C2一端与二极管整理桥的正向输出端相连，另一端接地，滤波电容C3一端与二极管整理桥的负向输出端相连，另一端接地。
PCT/CN2014/093212 2014-06-06 2014-12-08 一种航空通信系统地面装置 WO2015184757A1 (zh)

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CN203883825U (zh) * 2014-06-06 2014-10-15 成都福兰特电子技术有限公司 一种航空通信系统地面装置

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CN201282454Y (zh) * 2008-09-23 2009-07-29 林志华 一种航空通信压扩系统
CN201937829U (zh) * 2011-01-05 2011-08-17 成都福兰特电子技术有限公司 数字飞地覆盖系统
CN202385098U (zh) * 2011-11-09 2012-08-15 成都福兰特电子技术有限公司 中继数字飞地系统
CN203883825U (zh) * 2014-06-06 2014-10-15 成都福兰特电子技术有限公司 一种航空通信系统地面装置

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CN201282454Y (zh) * 2008-09-23 2009-07-29 林志华 一种航空通信压扩系统
CN201937829U (zh) * 2011-01-05 2011-08-17 成都福兰特电子技术有限公司 数字飞地覆盖系统
CN202385098U (zh) * 2011-11-09 2012-08-15 成都福兰特电子技术有限公司 中继数字飞地系统
CN203883825U (zh) * 2014-06-06 2014-10-15 成都福兰特电子技术有限公司 一种航空通信系统地面装置

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