CN201985870U - 单兵背负式无线电监测测向系统 - Google Patents
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Abstract
本实用新型公开了一种单兵背负式无线电监测测向系统，系统设计一体化集成监测测向天线和接收处理单元，并可在一套系统中实现空间谱测向和相关干涉仪测向，监测测向站采用小型一体化监测测向天线技术，该监测测向天线是可折叠式偶极子天线阵，五个偶极子单元天线均匀排列成圆形阵，连同5信道接收机及信号处理单元都安装在天线阵内。天线设计充分考虑并消除天线间耦合、反射等影响后集成在测向天线阵内，在不影响测向天线性能的情况下加强集成度，方便用户使用。
Description
技术领域
本发明涉及的是无线电监测测向系统，属于通信技术领域中的信号接收处理技术。
背景技术
在现有的无线电监测测向技术领域中，相关产品基本是以车载式、固定式、可搬移式等几种方式实现，但随着无线电业务的飞速发展，对无线电监测的要求也越来越高，一种体积小、重量轻、携带方便的监测系统的研发实现要求也越来越迫切，本发明正是基于这样一种思路研发而成。
发明内容
本发明的目的是：本发明从接收前端和信号处理两方面着手，充分利用各种优势资源，实现单人可背负实现无线电信号的监测测向。系统设计一体化集成监测测向天线和接收处理单元，并可在一套系统中实现空间谱测向和相关干涉仪测向，监测测向站采用小型一体化监测测向天线技术，该监测测向天线是可折叠式偶极子天线阵，五个偶极子单元天线均匀排列成圆形阵，连同5信道接收机及信号处理单元都安装在天线阵内。天线设计充分考虑并消除天线间耦合、反射等影响后集成在测向天线阵内，在不影响测向天线性能的情况下加强集成度，方便用户使用。
本发明采用的技术方案是：一种无线电监测测向系统，其特征在于：5单元监测测向天线阵通过射频电缆连接于同轴馈电电路，同轴馈电电路通过射频电缆向有源天线供给直流电源的同时接收天线所接收到的射频信号并将射频信号传输至5通道下变频单元，若接收天线为无源则无需同轴馈电电路。下变频单元输出中频信号至A/D转换单元变换为数字信号后输入DSP信号处理单元进行信号处理，DSP信号处理单元集成空间谱测向算法和相关干涉仪测向算法，能够根据系统应用要求实现空间谱测向或相关干涉仪测向。同轴馈电、5通道下变频单元、A/D转换单元、DSP信号处理单元均受控制单元控制，控制单元通过LAN口接收外部控制指令并可将监测测向结果数据通过网络传输到外部计算机或网络系统。系统独立设置电源模块，根据其它各功能模块工作电源要求提供不同电源输出。
上述的无线电监测测向系统，其进一步特征在于：同轴馈电电路单元、5通道下变频单元、A/D转换单元、DSP信号处理单元、控制单元、电源模块集成在一个腔体内，该腔体与天线支撑杆连为一体，支撑杆上连接5路偶极子天线单元。5路天线有源电路电源通过射频电缆利用同轴馈电方式供给。5路偶极子天线单元天线振子为可折叠式，在非使用状态可有单一小型设备箱包装携带。
本发明具有如下的有益效果：本发明将接收天线与射频信号接收处理单元进行了一体化设计，在保证监测测向性能的前提下一个工作人员即可背负实现单兵工作，扩展了无线电监测设备的应用领域；整个监测测向系统的控制仅由1根网线实现，对于外部连接仅有一个电源接口和LAN接口，实际应用极其方便；本系统可作为移动式、固定式无线电监测测向系统的延伸与补充、提高无线电监测网的有效覆盖范围；本发明产品实现相对成本低，对于军用、民用配备级别可以大幅降低，进而促进无线电监测业务的快速发展。
下面结合附图和具体实施方式对本发明作进一步详细的说明。附图和具体实施方式并不限制本发明要求保护的范围。
附图说明
图1是本发明数字式无线电监管系统的系统电原理框图；
图2是本发明监测测向天线阵的结构示意图；
图3是本发明的系统闭合状态结果示意图；
图4是本发明的系统展开工作状态结构示意图；
图5是本发明的系统控制流程图。
具体实施方式
以下通过说明书附图和具体实施例对本发明技术方案作进一步的详细说明。
本发明数字式无线电监管系统的系统电原理框图如图1所示，图中101是5单元有源监测测向天线阵，102是同轴馈电单元，103是5通道下变频单元，104是A/D转换单元，105是DSP信号处理单元，106是控制单元，107是LAN口，108是电源模块。其逻辑关系为：5单元有源监测测向天线阵101通过射频电缆与同轴馈电单元102连接，下行信号为射频信号即5单元有源监测测向天线阵101所接收到的系统所需监测测向的无线电信号，上行虚线代表同轴馈电单元102供给5单元有源监测测向天线阵101的直流电源，电源电压及电流根据5单元有源监测测向天线阵101工作要求而定，无线电信号通过同轴馈电单元102后输入5通道下变频单元103，5通道下变频单元103通过控制单元106的控制将欲接收的无线电信号频率下变频至中频信号，模拟中频信号经过A/D转换单元104进行数字采用后变成数字信号，数字信号通过DSP信号处理单元105实现信号分析处理，包括无线电信号的指标测量、幅相信息解析、测向算法处理、监测测向结果运算等。数据处理结果通过数据线传送给控制单元106，控制单元106通过LAN口107将数据结果返回给外部计算机，电源模块108则是对其它各单元进行电源供给和控制。
本实例的具体结构实现形式如附图2所示，201为金属腔体，202是外部连接数据和电源端口，203是工作状态天线单元，204是闭合状态天线单元，205是避雷针接口，206是天线阵闭合状态固定天线臂膀装置，207是天线振子支撑臂膀转动装置，208是系统与其它安装设施配合接口，209是天线振子支撑臂膀，210是天线阵支撑杆，211是避雷针。金属腔体201内部包含同轴馈电单元102、5通道下变频单元103、A/D转换单元104、DSP信号处理单元105、控制单元106、LAN口107、电源模块108，外部连接数据和电源端口202是LAN和外部电源输入接口二合一连接端口，这样整套系统与外部连接只有一个接口，包含数据和电源，连接线可以在外部连接数据和电源端口202输出处一分为二，系统工作电源可分为自带蓄电池和外接直流电源两种，可根据工作需要选择。工作状态天线单元203是5单元监测测向天线工作状态，分五等份均与分布在以天线阵支撑杆210为轴心的圆周上，此时天线振子支撑臂膀209通过天线振子支撑臂膀转动装置207旋转处于与天线阵支撑杆210垂直状态，闭合状态天线单元204是天线闭合状态下将天线振子折叠状态，此时，天线振子支撑臂膀209通过天线振子支撑臂膀转动装置207旋转至于天线阵支撑杆210平行状态，通过天线阵闭合状态固定天线臂膀装置206将5路天线的支撑臂膀209固定在以支撑杆210为轴心的圆周上，避雷针接口205为预留接口，根据工作状态确定是否安装避雷针211，避雷针211在非工作状态可拆卸后置于包装箱内，接口208同样为预留接口，若工作时需要将本系统置于较高位置，则可通过接口208与支撑装置进行连接。附图3为本系统闭合状态结果示意图，附图4为本系统展开工作状态结构示意图。
图5是本发明的系统控制流程图。
Claims (7)
1.一种无线电监测测向系统，其特征在于：监测测向天线阵通过射频电缆连接于同轴馈电电路，同轴馈电电路通过射频电缆向有源天线供给直流电源的同时接收有源天线所接收到的射频信号并将射频信号传输至下变频单元，下变频单元输出中频信号至A/D转换单元变换为数字信号后输入DSP信号处理单元进行信号处理，同轴馈电电路、下变频单元、A/D转换单元、DSP信号处理单元均受控制单元控制，控制单元通过LAN口接收外部控制指令并可将监测测向结果数据通过网络传输到外部计算机或网络系统。
2.根据权利要求1所述的无线电监测测向系统，其特征在于：所述同轴馈电电路、下变频单元、A/D转换单元、DSP信号处理单元、控制单元、电源模块集成在一个金属腔体内，所述金属腔体与天线支撑杆连为一体，支撑杆上连接偶极子天线单元。
3.根据权利要求2所述的无线电监测测向系统，其特征在于：所述天线有源电路电源通过射频电缆利用同轴馈电方式供给；所述偶极子天线单元天线振子为可折叠式。
4.根据权利要求1至3之一所述的无线电监测测向系统，其特征在于：系统独立设置电源模块，根据各功能模块工作电源要求提供不同电源输出；系统内置校准源，能够实时对监测测向系统进行校准；DSP信号处理单元集成空间谱测向算法和相关干涉仪测向算法，能够根据系统应用要求实现空间谱测向或相关干涉仪测向。
5.一种无线电监测测向系统，其特征在于：监测测向天线阵通过射频电缆接收无源天线所接收到的射频信号并将射频信号传输至下变频单元，下变频输出中频信号至A/D转换单元变换为数字信号后输入DSP信号处理单元进行信号处理，下变频单元、A/D转换单元、DSP信号处理单元均受控制单元控制，控制单元通过LAN口接收外部控制指令并可将监测测向结果数据通过网络传输到外部计算机或网络系统。
6.根据权利要求5所述的无线电监测测向系统，其特征在于：所述下变频单元、A/D转换单元、DSP信号处理单元、控制单元集成在一个金属腔体内，所述金属腔体与天线支撑杆连为一体，支撑杆上连接偶极子天线单元；所述下变频单元采用二次变频技术和无源混频技术，本振源采用DDS技术和高稳晶振，利用DSP和32位MCU处理器进行控制；所述偶极子天线单元天线振子为可折叠式。
7.一种权利要求1或者权利要求5所述的监测测向天线阵，它包括偶极子天线单元、金属腔体、外部连接数据和电源端口、安装设施配合接口，所述偶极子天线单元、外部连接数据和电源端口、安装设施配合接口分别与所述金属腔体相连，其特征在于：所述偶极子天线单元是由可折叠式天线振子、避雷针接口、天线阵闭合状态固定天线臂膀装置、天线振子转动装置、天线振子支撑臂膀、天线阵支撑杆和避雷针组成；工作状态时，所述可折叠式天线振子通过所述天线振子转动装置和天线振子支撑臂膀展开于天线阵支撑杆圆周；闭合状态时，所述可折叠式天线振子通过所述天线振子转动装置和天线阵闭合状态固定天线臂膀装置闭合于天线阵支撑杆圆周；所述避雷针通过避雷针接口连接于天线阵支撑杆上端。
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