搜索 - 科创

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前段时间刚做完一个气相色谱仪里程控线性升温的项目我觉得我可以回答这个问题233-徐版说的PT100自发热问题是其一，这一点很重要，所以供电电压必然不能很高。这就需要很大的放大倍数给单片机采集，所以前端...

三、由轨道参数计算关机点参数中学物理就讲过，卫星的轨道形状是一个椭圆。地球在椭圆的一个焦点上，而椭圆的参数包括半长轴a、偏心率e。在研究轨道问题时，常常在极坐标系下进...

“5G采用的编码和协议可以进一步提高传输能力，理论上达到香农极限。”“增加波束能够提高频谱利用率，进一步扩大容量，不过这个与功耗关系不大。”香农定理只是一个基本约束，是众多条件之一。简单的根据信道编码...

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