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  • 2022-06-19
    设 [tex=3.143x1.571]XBy3/fjwHVOe2Qn6lzBVHGuOsDVn+VzBPPS22Xg7Yy0=[/tex] 是[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex] 的傅里叶变换, 利用傅里叶变换的定义或者性质, 求下面序列的傅里古变换[tex=2.5x1.357]X3UVbQs20CotkEj29TzqBQ==[/tex]
    • [tex=12.786x3.286]RobjZ2kAxx1a0QXaJ0wJMWfHTe/IrB4NyHp5MzeM7qhq9UCBFhkdz91l9OhWMvEzFMQoIa65df0efgSH51ei4xKuU22+Br+1p4SEnXRGeHs=[/tex]令 [tex=3.286x1.143]vCdd3zj+uOENFmRCbXrz0nhoPbXrwQ4fJpGa3u7QI+s=[/tex][tex=37.286x7.071]ifE9NWj3X6IpRVSt3T5IToS+eUHjDuL83Ud3qQK2n7oPM3kTaOro0vGKy0gKFMDLhZ+Gc5+5VjyvroTbjs/IO9YsmS7Cy8qyNKtmWBp1hJIGsUDq/OiJEYrdubrH3PsZ0MVdGwAGG6VBYxWHXgAQ+5JDGwgqPQjqbyMcrwAM4SR8BGFc0iEQOdJRTADNoBqvrXq6Hi+x5+u+gsBK8aIe//BDZrOcW1ZY4UOIcrRCAlLKYRrdnbYfP3bCMMW78JM0L+ELaY8nWRn27aispElb+j2fj3o7WE1ybonsiMHxgjGXCIx4xuzJfHHrwIkGZ6gwr8DHWfG5RhbU39ze1WHP31fRWL1DvfVSSITirVTX7Bi0O5N/NPy2M9s0J+ETGhrNA9Z24gPcfmmvDRP4nZ0B4SCYjFBWDaE10TySYXhQkykB90xYMyNI98x+fmg9gtsVNwKUgZne7UJ6UT3CWLs2QuroxUiRjQZOKOlFRTFTIJ+nTFOkEQ8NsaR3ld2MnUgwTSvr5w+D9J7ag6Pts7hhZv351SZTDEwi83M/j6GyBqjOcj2sD4gi4ZYn/wzcLtmt4EVk6S/6x9TrVQVDz1ScDastE5GbovQ52XCWYrojxCcSY3qWbYE/J3+qzkK0omeYI1Xn0qQNwyttOloQLltbSoLvLyuLSYkoL/nbkcLHJvUPl0RePEXeI3QC8rLGROv7[/tex]或者 $[tex=17.357x2.429]bH6OVrWRz5gY3eAbFlsNrF3UeDXBS2lUvBHnIpWjdIZeT3AN0ggZEKTv3CkcOzJU1Bmszo2udtvjKABtUxKFYIWbgaJ5B9/0t7mpoAD4d5PO4D/XO2WpPfkAkRsNiWMSejNdERevtNuMEiSD23tDi948aWw7b6xjI18qWzcVrfVvj3884EVn+oyn9FQ4K0fo9kjOmlr7WG9QwKfu2g9oWw==[/tex] 。
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    广告招租

    举一反三

    内容

    • 0

      已知序列[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex]的傅里叶变换为[tex=3.214x1.571]XBy3/fjwHVOe2Qn6lzBVHN6yHo/I9Z7hnAHo+VZJOTQ=[/tex], 求下列序列的傅里叶变换。[tex=2.357x1.5]7r0Yh+QgVIY9JO1h8LHzCg==[/tex]

    • 1

      已知序列[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex]的傅里叶变换为[tex=3.143x1.571]V5CZPDBh0gnsQzqmO1OBVfNZt04Ff8CaEEeMwl1DIxhcN73hQR6ThRwTYx8WfMep[/tex], 求下列序列的傅里叶变换。[br][/br][tex=2.786x1.357]WyCe3IllTyjKGRCWw+M6Dw==[/tex]

    • 2

      设图 [tex=2.0x1.286]zgberj0rolYjIPxYE78yIw==[/tex] 所示的序列[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex]的[tex=1.5x1.286]Taerf469OgHI8Xao7U9+wA==[/tex]用 [tex=3.143x1.571]XBy3/fjwHVOe2Qn6lzBVHGuOsDVn+VzBPPS22Xg7Yy0=[/tex] 表示, 不直接求出[tex=3.143x1.571]XBy3/fjwHVOe2Qn6lzBVHGuOsDVn+VzBPPS22Xg7Yy0=[/tex], 完成下列运算[tex=6.286x2.714]WdYFOXfG5nnGW/WgiEfXSz6+JVJx6AVgInacnDO3X1cnW4zXAciTNEYqU4ymDx7/VZJenYAqd8AT3H2krQ1ZtQ==[/tex][tex=3.143x1.571]XBy3/fjwHVOe2Qn6lzBVHIqN3O0YE+bg6DsOiu2ITrE=[/tex][img=359x181]17d31bca30c1ecd.png[/img]

    • 3

      已知序列[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex]的傅里叶变换为 [tex=3.214x1.571]XBy3/fjwHVOe2Qn6lzBVHN6yHo/I9Z7hnAHo+VZJOTQ=[/tex], 求下列序列的傅里叶变换。[br][/br][tex=4.286x1.357]Le194Y5upVjD/tkgvSDk12sRcmIAU0DqY5vxxPl+4lI=[/tex]

    • 4

      已知序列[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex] 的傅里叶变换为 [tex=3.214x1.571]XBy3/fjwHVOe2Qn6lzBVHN6yHo/I9Z7hnAHo+VZJOTQ=[/tex], 求下列序列的傅里叶变换。[br][/br][tex=3.714x1.357]c8f8pYOWcLRchWEduA0fr8+0WiKf/2yIm7EozOi87Us=[/tex]