<p>強大的定向干擾導致週三在中國一座主要城市的衞星導航系統，包括 GPS 和北斗，暫時失效，行業協會週五表示。\n 此次干擾影響了南京的用户，這座城市人口近 1000 萬，是江蘇省的省會，干擾發生在週三下午 4 點到晚上 10 點之間。依賴衞星定位的汽車導航、外賣、打車和無人機控制應用在此期間經歷了 “系統性異常”。\n 用户報告稱位置嚴重漂移，完全失去了道路數據，影響了日常生活和經濟。干擾使得依賴位置的服務癱瘓，打車訂單下降了 60%，外賣效率下降了 40%，而共享單車系統報告位置錯誤高達 57 公里（35 英里），當地媒體稱。\n 根據南京衞星應用產業協會的技術分析，此事件是由於全球導航衞星系統（GNSS）信號的 “臨時干擾和抑制” 造成的，而非移動網絡故障。\n“干擾特別針對北斗和 GPS 的民用頻段，阻止接收器正確識別定位信號，” 該協會在社交媒體上表示。\n“因此，有效導航變得不可能。即使是配備離線地圖的設備也因缺乏有效的定位源而遭遇位置漂移和完全缺乏數據反饋。”\n\n\n 該協會沒有提到可能實施干擾的主體或目的。\n“如果此次導航干擾是由於在重大事件期間實施的臨時信號控制措施造成的，這種行為被視為行業安全標準協議，” 它表示，暗示可能發生了高安全性事件。\n“相關信號在事件結束後已經逐漸恢復正常。”\n 它補充説，信號異常僅影響了民用 GNSS 頻段，而北斗的軍事頻率則 “完全未受干擾”。\n 根據該協會，北斗的軍事和民用頻率在物理上是分開的，軍事頻段採用專用加密和抗干擾技術，以確保國家防禦和安全的可靠服務。\n 相比之下，GPS 的軍事和民用信號共享相同的載波頻率，儘管它們通過不同的加密和頻譜調製技術在功能上是分開的。\n 該協會表示，民用北斗和 GPS 信號在此次事件中同時受到干擾是 “遠見戰略規劃的確認”。\n 它解釋説，在中國與北約之間發生衝突的情況下——北約依賴美國軍方操作的 GPS——試圖干擾北斗也會干擾 GPS，從而形成戰略制衡。\n 它指出，使北斗的民用頻段與 GPS 兼容的決定創造了顯著的戰略威懾：“任何針對北斗民用信號的故意干擾都會同時干擾依賴 GPS 的應用，從而從根本上威懾惡意干擾，併為中國的民用導航服務建立堅固的安全屏障。”\n 衞星干擾在軍事衝突中被使用，例如烏克蘭戰爭，以切斷通信和削弱精確度。據報道，伊朗在與以色列和美國的 12 天戰爭中經歷了 GPS 信號干擾後，考慮轉向北斗導航系統，這場戰爭導致其軍事和核設施遭受重大損失。\n</p>

<p>在中國南京發生了一起針對性的干擾事件，干擾了 GPS 和北斗衞星導航系統，影響了打車和配送等民用服務。干擾針對民用頻段，暗示這是一起高安全性的事件。軍事頻段未受到影響。該事件突顯了戰略規劃的重要性，因為干擾北斗也會影響 GPS，形成戰略威懾。這一干擾與烏克蘭戰爭等衝突中看到的軍事戰術相一致</p>

<p>Powerful, targeted jamming caused a temporary blackout of satellite navigation systems, including GPS and BeiDou, in a major Chinese city on Wednesday, an industry association said on Friday.\nThe disruption affected users in Nanjing, a city of nearly 10 million people and capital of the eastern province of Jiangsu, between 4pm and 10pm on Wednesday. Car navigation, food delivery, ride-hailing, and drone control apps relying on satellite positioning experienced a “systemic anomaly” during the period.\nUsers reported severe position drifting and total loss of road data, affecting daily life and the economy. The disruption paralysed location-dependent services, causing ride-hailing orders to plummet by 60 per cent and delivery efficiency to drop by 40 per cent, while bike-sharing systems reported location errors of up to 57km (35 miles), according to local media.\nThe incident was caused by “temporary interference and suppression” of global navigation satellite system (GNSS) signals, rather than mobile network failures, according to a technical analysis by the Nanjing Satellite Application Industry Association.\n“The interference specifically targeted the civilian frequency bands of both BeiDou and GPS, preventing receivers from correctly identifying positioning signals,” the association said on social media.\n“Consequently, effective navigation was impossible. Even devices equipped with offline maps suffered from location drift and a complete lack of data feedback due to the absence of a valid positioning source.”\n\n\nThe association did not mention who might have carried out the jamming, or for what purpose.\n“If this navigation disruption was caused by temporary signal control measures implemented for security during a major event, such actions are considered standard industry safety protocols,” it said, hinting at the possibility of a high-security event having taken place.\n“Relevant signals have already gradually returned to normal after the event concluded.”\nIt added that the signal anomaly had affected only civilian GNSS frequency bands and the BeiDou military frequencies had remained “completely unaffected” by the interference.\nBeiDou’s military and civilian frequencies are separated physically, and the military bands employ dedicated encryption and anti-jamming technologies to ensure reliable service for national defence and security, according to the association.\nIn contrast, the military and civilian signals of GPS share the same carrier frequencies, though they are functionally separated through distinct encryption and spectral modulation techniques.\nThe association said the fact that civilian BeiDou and GPS signals had been simultaneously disrupted in the incident was a “confirmation of farsighted strategic planning”.\nIt explained that in the event of a conflict between China and Nato – which relies on GPS operated by the US military – an attempt to jam BeiDou would also jam GPS, creating a strategic check and balance.\nIt noted that the decision to make BeiDou’s civilian frequency band compatible with GPS created a significant strategic deterrent: “Any deliberate interference targeting BeiDou’s civilian signals would simultaneously disrupt GPS-dependent applications, thereby fundamentally deterring malicious jamming and building a robust security barrier for China’s civilian navigation services.”\nSatellite jamming has been used in military conflicts, such as the Ukraine war, to sever communications and undermine precision. Iran has reportedly considered shifting to the BeiDou navigation system after experiencing GPS signal disruptions during its 12-day war with Israel and the US in June, which resulted in major losses at military and nuclear facilities.\n</p>
<div class="lb-trans"><p>強大的定向干擾導致週三在中國一座主要城市的衞星導航系統，包括 GPS 和北斗，暫時失效，行業協會週五表示。\n 此次干擾影響了南京的用户，這座城市人口近 1000 萬，是江蘇省的省會，干擾發生在週三下午 4 點到晚上 10 點之間。依賴衞星定位的汽車導航、外賣、打車和無人機控制應用在此期間經歷了 “系統性異常”。\n 用户報告稱位置嚴重漂移，完全失去了道路數據，影響了日常生活和經濟。干擾使得依賴位置的服務癱瘓，打車訂單下降了 60%，外賣效率下降了 40%，而共享單車系統報告位置錯誤高達 57 公里（35 英里），當地媒體稱。\n 根據南京衞星應用產業協會的技術分析，此事件是由於全球導航衞星系統（GNSS）信號的 “臨時干擾和抑制” 造成的，而非移動網絡故障。\n“干擾特別針對北斗和 GPS 的民用頻段，阻止接收器正確識別定位信號，” 該協會在社交媒體上表示。\n“因此，有效導航變得不可能。即使是配備離線地圖的設備也因缺乏有效的定位源而遭遇位置漂移和完全缺乏數據反饋。”\n\n\n 該協會沒有提到可能實施干擾的主體或目的。\n“如果此次導航干擾是由於在重大事件期間實施的臨時信號控制措施造成的，這種行為被視為行業安全標準協議，” 它表示，暗示可能發生了高安全性事件。\n“相關信號在事件結束後已經逐漸恢復正常。”\n 它補充説，信號異常僅影響了民用 GNSS 頻段，而北斗的軍事頻率則 “完全未受干擾”。\n 根據該協會，北斗的軍事和民用頻率在物理上是分開的，軍事頻段採用專用加密和抗干擾技術，以確保國家防禦和安全的可靠服務。\n 相比之下，GPS 的軍事和民用信號共享相同的載波頻率，儘管它們通過不同的加密和頻譜調製技術在功能上是分開的。\n 該協會表示，民用北斗和 GPS 信號在此次事件中同時受到干擾是 “遠見戰略規劃的確認”。\n 它解釋説，在中國與北約之間發生衝突的情況下——北約依賴美國軍方操作的 GPS——試圖干擾北斗也會干擾 GPS，從而形成戰略制衡。\n 它指出，使北斗的民用頻段與 GPS 兼容的決定創造了顯著的戰略威懾：“任何針對北斗民用信號的故意干擾都會同時干擾依賴 GPS 的應用，從而從根本上威懾惡意干擾，併為中國的民用導航服務建立堅固的安全屏障。”\n 衞星干擾在軍事衝突中被使用，例如烏克蘭戰爭，以切斷通信和削弱精確度。據報道，伊朗在與以色列和美國的 12 天戰爭中經歷了 GPS 信號干擾後，考慮轉向北斗導航系統，這場戰爭導致其軍事和核設施遭受重大損失。\n</p>
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定向干擾事件導致中國東部南京的 GPS 和北斗系統失效