求问一个纠结了我很久的关于h(t)求解的问题

2025-03-16 03:34:09
推荐回答(3个)
回答1:

因果系统是指当且仅当输入信号激励系统时,才会出现输出(响应)的系统。也就是说,因果系统的(响应)不会出现在输入信号激励系统的以前时刻。系统的这种特性称为因果特性。符合因果性的系统称为因果系统(非超前系统)。判定方法若连续时间系统的冲激响应函数h(t)在0时刻前为0,则此系统为因果系统;若离散时间系统的单位响应函数h(n)在0时刻前为0,则此系统为因果系统。则零输入响应不为零的响应,不为因果系统。可以用你说的那种方法求

回答2:

(1).可以用这个方法求解h(t)。但是要注意在求出通解之后代入题目给出的y(t)和y'(t)时要分清这是全响应的值还是零状态响应的值。(2).零输入响应是否为零和系统是否因果是无关的,系统的因果性要用系统函数来判断。

回答3:

转一个你比较感兴趣的行业吧,这样说来,首先自己就有兴趣做下去。
别的什么也不会,这倒没什么,就跟刚毕业的大学生一样,找个非本人专业的领域的工作,一步一步慢慢学呗。但最重要的,是你要对它有兴趣。

若是对销售感兴趣就去做销售吧,没什么好怕的。再说销售本身就是一个很锻炼人的职业。
我以前就是做外贸的,后来转做国内销售,嘿嘿,现在混个区域经理了。
加油吧,哥们。

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