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第261章 航天员(1 / 2)

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李树对宇宙空间理论和载人航天的相关技术,相当精通,能像教授一样把理论说的很清楚,让五个预选航天员相当惊诧,这才相信李树能够拿出所谓的理论手册。

实际上,李树这些理论知识都来源于系统,他倒是愿意无偿奉献出来,只要能提升华夏的科学技术知识储备,他甚至想把黑科技系统数据库里的知识都导出来。

不过,现在别有用心之人众多,到处出来搞不好就是灾难,还是慢慢的甄别之后再选择普及。

饭后,林金东邀请李树在明年过年后之后再次造访川渝战斗机研发中心,就雷达的事情进行指导。

“李大神,你眼光很毒,你说五个预选的优秀宇航员里,谁最有可能成为进入太空第一人?”林金东在临别前突然问。

李树故作神秘的反问:“林少校,你看谁最有可能呢?”

“我看是曹大校最有可能,他的身体素质和理论素养相当高,你也是看见的。”林金东给出了自己的判断。

“我认为是杨力伟中校,他低调、谦和,并不代表他的理论素质不高。”

林金东思索了一会儿后道:“我还真没看出杨中校比其他首长优秀,或许你是对的。”

“航天员选拔相当严苛,后面会发生什么,我们也没法提前预知,静观吧。”

李树从空军大院出来之后,脑中已经开始思考所谓的相控阵雷达技术的研发工作。

视界之内相控阵雷达的理论知识和现成可供参考的相控阵雷达在李树脑中一一呈现。

无源相控阵雷达早在八十年代就已经相当成熟,其中最关键的是T/R组件,是指一个无线收发系统中视频与天线之间的部分,即T/R组件一端接天线,一端接中频处理单元就构成一个无线收发系统。

在最先进的有源相控阵雷达里,同样需要用T/R组件,所以算是整个相控阵雷达里的核心攻关重点。

而在T/R部件里,微波单片集成电路组成的发射模块是关键中的关键,而模块在低副瓣工作时,需要进行更多数量的相位控制以减少振幅和相位均方根误差,所以归根到底,还是数字信号芯片和模拟信号芯片技术。

除此之外,集成电路的个数,功率输出的高低,接收的噪声系数大小,幅度和相位控制的精度。同时,辐射单元阵列形式的设计也至关重要。

这种军用集成电路和特殊芯片的制造和设计,虽没有普通商用芯片那样复杂,不过其稳定性和多场景使用的情形使其需要进行再设计。

在战斗机用的相控阵雷达上,需要集成相当之多的军用芯片,工作量巨大,由人工完成,效率和产量都会相当低,如果更复杂的有源相控阵雷达,那将会是更难的生产。

李树根据尖10的情况,有选择的把一些太过先进的功能剔除,留下来简单实用,并且利于大规模生产的部分,毕竟尖10将会是华夏第一款大批量列装的战机,必须要考虑到普及型。

看来之前找梅老板拉投资去搞数字信号和模拟芯片是搞对了,如果这笔军工订单能成,那估计不出三年,就能把钱还给煤老板,同时还能自此在军用雷达芯片供应领域立足。

想到这里,李树便驱车赶往七分部的建设现场。

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