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中国卫星成功捕捉美国B-21轰炸机，美军机密部队无处藏身_我的网站

一 |     最近，我国长光卫星公司在一个国际开源网站上突然发布了一组B-21隐身轰炸机的卫星照片，当时这架飞机正在加州爱德华兹空军基地驶出机库、加油及准备飞行测试。这件事情让美国军方非常难受。因为这意味着他们在全球部署的隐身战略轰炸机，或者其他高价值战略目标，都将无处躲藏。    Dozens of businesses, government offices, vehicles, and at least three police stations went up in flames in Freetown, Makeni, Kamakwie, and other cities across Sierra Leone from August 10 through 12, with over 113 people arrested and police introducing an emergency nationwide curfew and deploying tear gas and live ammunition to disperse crowds.,The curfew was lifted on August 13, with banks, businesses, government offices, and most stores reopened and communal services beginning to clear the damage. However, ramped-up security measures, including federal troop deployments to assist police, have been left in place.,What Happened?,Sierra Leone is one of the poorest nations in the world, ranking 186 out of 198 in a recent GDP purchasing power parity ranking. An estimated 80 percent of the population lives in poverty, many of them in the country’s rural areas. Like other nations in Africa, the country has faced special difficulties amid the global economic calamity brought on by COVID, and exacerbated by Western restrictions on Russian exports of agricultural goods and fertilizers amid the security crisis in Ukraine, which has caused a major jump in food prices.,AfricaAnti-Russia Sanctions Left Africa Without Access to Grain and Fertilisers, African Union Chief Says3 June, 11:13 GMT,As a net importer of both energy and food, Sierra Leone is especially vulnerable to global economic conditions, and along with food and fertilizers, fuel and electricity costs have also soared. Food prices alone have jumped by over 40 percent over the past few months, with a bag of rice once costing 350 leones now going for over 500. The country’s Central Bank recently removed three zeros from the national currency in a bid to restore confidence. The country has also been overcome by weeks of strikes by government workers, including doctors and teachers, and by small traders protesting poor conditions.,Coup Plot?,However, President Julius Maada Bio has also accused protesters of having ulterior motives beyond the cost of living crisis.,“This was not a protest against the high cost of living occasioned by the ongoing global economic crisis. The chant of the insurrectionists was for a violent overthrow of the democratically-elected government,” Bio said in an address on August 12 after returning to the country from a holiday in London.,Local media pointed to the chants of “Bio must go” among protesters as they gathered in the capital, and the president accused some of the demonstrators of consisting of “APC Warriors,” a reference to the opposition All People’s Congress party, which governed the country from 2007 until 2018, when Bio’s Sierra Leone People’s Party won national elections.,No doubt mindful of the violent civil war which shook the country between 1991 and 2002, claiming as many as 70,000 lives and displacing over 2.5 million people, Bio vowed that “in the coming weeks and months, [the] government will undertake necessary security actions meant to guarantee the peace and security of all citizens.”,“The security forces will, and must, act with great restraint and within their professional codes of service. But be assured that my government will crack down hard on violent insurrectionists, their collaborators, their sponsors and their supporters. My government will relentlessly fight those who would rather use terror and gruesome violence to achieve political goals,” the president said.,As a government, we will continue our engagement with Civil Society as we strive to promote sustainable peace, national cohesion and socio-economic development in Sierra Leone. #newdirectionagenda— President Julius Maada Bio (@PresidentBio) August 18, 2022,Bio did not elaborate on who these “sponsors” and “supporters” were, or whether they included any foreign actors.,Geopolitical Context,Like other African nations, Sierra Leone recently rejected calls by Washington and Brussels to show solidarity with the West and Ukraine and impose sanctions on Russia. But even before the escalation of the Ukraine crisis, relations between Freetown and Washington were tense at times. Last year, US President Joe Biden snubbed Bio by refusing to invite the African leader to the US’ so-called “Democracy Summit.” No reasons were given. However, neighboring Liberia, which faced mass civil unrest of its own between 2019 and 2020, and whose officials have been sanctioned by the US over suspected corruption, did get an invite.,While Sierra Leone maintains economic and political ties with its former British colonial masters, and remains a member of the Commonwealth of Nations, Freetown has sought to expand its partnerships with other geopolitical power centers, including Russia and China. President Bio attended the Russia-Africa Summit in Sochi in 2019, where he discussed ways to strengthen economic cooperation between the distant nations. In February 2021, Freetown signed onto Moscow’s efforts to prevent the deployment of weapons in outer space. In May 2021, Bio spoke by phone to President Xi Jinping of China, where they discussed the friendly, “brotherly” relations between the two nations, as well Chinese assistance to Freetown in measures against COVID, and agricultural and economic development.,In this context, the reactions of major foreign powers to this month’s unrest have been telling. While the United States, Britain, and the European Union collectively expressed “grave concern” over the “disturbing reports of violence” and urged the parties to “stay calm, promote accountability and ensure respect for human rights,” China’s Embassy smoothed over the protests altogether, refraining from wagging its finger at Freetown and instead trumpeting the expanding cooperation between the two countries.,We are gravely concerned by reports of violence surrounding today’s demonstrations in Sierra Leone. We urge all parties to stay calm, promote accountability, and ensure respect for human rights and fundamental freedoms.— Bureau of African Affairs (@AsstSecStateAF) August 10, 2022,Similarly, while UK High Commissioner to Sierra Leone Lisa Chesney lectured President Bio about how “violence has no place in a democracy and the necessary investigation into August 10 can sit alongside de-escalation,” the Russian Embassy in the Republic of Guinea, which concurrently serves as the Embassy in Sierra Leone, only presented a bare bones report on the situation in the country, Bio’s meetings with community and tribal leaders, and indicated that an internal “debriefing” was being created “regarding the causes, course and consequences of the riots on August 10.”。B-2和B-21等隐身轰炸机虽然具有先进的隐身技术和远程打击能力，但它们并不是“隐身”的全能盾牌。它们的作战基地和起降场所依然是固定且相对可预测的，且一些重要基地，如美军在印度洋的迭戈加西亚军事基地，早已被全球军事分析人士熟知。因此，理论上，只要能够对这些重要军事基地进行实时的卫星监控，就可以对这些战略轰炸机和其他高价值目标进行全天候监视。但即便如此，在过去几年里，除了中国，几乎没有国家研究类似的卫星监控技术。限制美国研发这个技术的主要障碍是算法。卫星监控主要关注地球表面，大多数数据采集和处理都集中在静态或相对稳定的物体上，比如城市、河流、山脉等自然地理特征，所以在设计上，卫星监控的算法，基本上只能用于处理静态物体。相对而言，飞机在广阔的地球表面上是一种动态且微小的物体，这使得卫星在数据处理阶段，容易将飞机的影像误判为噪声或无关数据，从而被忽视或筛除。然而，中国长光卫星公司通过创新性的算法突破，成功解决了这一问题，使得卫星能够从浩瀚的数据信息中准确地识别出飞行器的影像，并实现实时跟踪。这一技术进步，意味着我国在光学监控和目标识别方面的能力已经达到了一个全新的高度。这一技术在战术上能为我国带来更多的帮助。该卫星可以与我们现有的预警体系形成协同效应，通过与地面监控设备、预警机等系统的深度融合，能够实时向作战单位传递有关敌方目标的位置、速度和轨迹信息。

二 | 这些数据可以快速计算出目标的坐标，并通过指挥链条将信息传递给在战备值班的部队，进而对敌方目标进行精准打击。这种高度整合的作战体系，使得我军能够在任何给定时刻对敌方的关键目标进行实时监控和反击，极大地提升了我国军队的反应速度和打击效率。同样的，对美国来说，中国卫星展现出的强大监控能力，也是他们的战略阻碍。近年来，美国的军事战略越来越依赖于“隐身轰炸机+隐身巡航导弹”的打击方式，尤其是在亚太地区的战略部署中更是如此，因为美国人认为，正面作战美军绝非我军的对手。然而，随着中国在卫星监控技术上的突破，这一战略的“隐形优势”正遭遇严峻挑战。长光卫星公司成功捕捉到B-21隐身轰炸机的行动，无疑让美军的最后一张“王牌”在信息战中失去了隐蔽性。这种局面使得美军在未来的高强度对抗中，将面临更大的不确定性和风险。传统的隐身战略可能不再像过去那样难以被察觉，尤其是在中国强大的卫星侦察和实时监控体系面前，美军的隐身装备可能难以逃脱中国的高精度打击。现代战争打的是情报，打的是信息，谁能掌握最先进的信息技术，谁就能获取战略主动权，中国无疑在这场竞争中获得了先机。

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