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郑州无线电中心成功解决一起民航部门甚高频干扰事件

  • 2026-04-16 08:55:28
郑州无线电中心成功解决一起民航部门甚高频干扰事件

     “进近频率杂音很大,机组多次反映指令听不清,我们已经临时调整了指挥间隔。”近日,河南省工业和信息化厅郑州无线电中心接到民航部门紧急投诉,郑州及邻近地市空域出现大面积民航甚高频导航通信干扰,严重影响地空对话清晰度,对飞行安全构成直接威胁。时值春运返程高峰,空中交通流量持续高位运行,干扰一天不除,安全风险就多一分。

接诉即动:与时间赛跑的“空中排雷”

      民航安全无小事。接到干扰投诉后,郑州无线电中心立即启动应急响应机制,主要领导靠前指挥,技术骨干全员到岗,成立专项干扰排查小组。一边调取固定监测站历史数据回溯分析,一边组织移动监测车、便携式监测设备整装待发。

      甚高频是飞行员与地面管制员唯一的语音通信手段,一旦被干扰,相当于“空中断联”。初步频谱分析显示,干扰信号覆盖范围广、频点多发,且呈现非连续发射特征,排查难度极大。

精准画像:用模型计算“锁定”互调真凶

      面对复杂电磁环境,排查小组没有贸然出动,而是先对干扰信号进行“画像”。技术人员通过交叉比对受干扰频点与周边大功率发射频率,运用互调干扰数学模型反复推算,精准预测出可能的互调产物频点。随后,固定监测站针对计算频点实施定向扫描,果然在预测位置捕捉到可疑信号。

      “就像是拿到了嫌疑人的身份证号。”技术人员形容。根据测向定位结果,排查小组锁定干扰源大致方位,随即赶赴现场进一步确认核查,最终确定信号来自某广电发射台相关设备。

联动降扰:一次功率调整“药到病除”

      锁定干扰源后,郑州无线电中心第一时间与省广电主管部门取得联系,启动军地、部门间干扰处置联动机制。经双方现场会商、技术验证,确认该发射设备在特定频点组合下产生互调分量,落入民航甚高频工作频段。考虑到春运期间广电信号传输保障同样重要,双方商定采取“临时降功率+节后设备优化”的处置路径。调整完成后,民航部门当即反馈:“干扰信号消失,地空通信恢复正常。”

复测闭环:天上地下再无“杂音”

      为确保干扰彻底消除,河南省无线电监测中心与郑州无线电中心联合组成复测小组,利用多个监测测向系统,对郑州及周边重点空域展开拉网式复查。多源监测数据显示,原受干扰频点底噪回落至正常水平,互调信号未再出现。

      “这次排查不仅靠设备,更靠思路。”郑州无线电中心相关负责人表示,从被动扫描到主动计算,从地面追踪到空中印证,“固定+移动”“空中+地面”监测体系协同发力,为快速精准排干扰提供了有力支撑。

机制筑基:筑牢民航无线电安全屏障

      此次甚高频干扰影响范围广、排查技术难度高,但自接到投诉到干扰消除,全程未超过48小时。高效的背后,是郑州无线电中心近年来持续优化干扰投诉快速响应机制、强化重点频率保护力度的结果。

      下一步,郑州无线电中心将继续密切跟踪民航专用频率使用情况,加强与民航、广电、公安等部门的常态化协作,提升复杂电磁环境下干扰溯源与应急处置能力,以更高水平的无线电安全保障,守护每一架航班的安全起降、每一位旅客的平安归途。

踔厉奋发 争先出彩

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  1. CONNECT:[ UseTime:0.000654s ] mysql:host=127.0.0.1;port=3306;dbname=i460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000857s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003427s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003167s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000670s ]
  6. SELECT * FROM `set` [ RunTime:0.004107s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000746s ]
  8. SELECT * FROM `article` WHERE `id` = 479260 LIMIT 1 [ RunTime:0.013595s ]
  9. UPDATE `article` SET `lasttime` = 1777596335 WHERE `id` = 479260 [ RunTime:0.007478s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.025217s ]
  11. SELECT * FROM `article` WHERE `id` < 479260 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.010241s ]
  12. SELECT * FROM `article` WHERE `id` > 479260 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000987s ]
  13. SELECT * FROM `article` WHERE `id` < 479260 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.020000s ]
  14. SELECT * FROM `article` WHERE `id` < 479260 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006749s ]
  15. SELECT * FROM `article` WHERE `id` < 479260 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000800s ]
0.186700s