【华侨大学823】22年考研真题及解析
<div class="article-content uc-nf-fontsize-change-dom simple-ui"> <p class="imgbox"><span class="image-box"><img data-original="http://image.uc.cn/s/wemedia/s/upload/2022/89452d6612bdde0e07ec6bcd9f88404c.png" src="http://image.uc.cn/o/wemedia/s/upload/2022/89452d6612bdde0e07ec6bcd9f88404c.png;,4,png;3,700x.png" uploaded="1" data-infoed="1" data-width="1146" data-height="717" data-format="png" data-size="201551000" data-index="0" class="image-loaded" style="width: 700px !important; height: 437.958px !important;" heavypress="http://image.uc.cn/o/wemedia/s/upload/2022/89452d6612bdde0e07ec6bcd9f88404c.png;,4,png;3,700x.png"><span class="share-import-title"></span></span></p><p class="MsoNormal"><span>已经到了考研强化的阶段，接下来这个专题会为大家整理名校信号与系统考研真题。每一套真题我都会给出他们的参考教材、课时对照，供大家查缺补漏！</span></p><p class="MsoNormal"><strong><span>那么如何使用这个系列？</span></strong></p><p class="MsoNormal"><span><span>1.</span></span><span>大家在强化阶段，在这里找到和你报考院校对应的参考教材为同一本的考研真题，拿来优先练手，专题强化。</span></p><p class="MsoNormal"><span><span>2.</span></span><span>所有真题务必先做完，再去看解析。真题很宝贵，无论是题目质量还是考察方式都会优于市面上的模拟题，请务必珍惜。</span></p><p class="MsoNormal"><span>本套题题目类型比较广泛，且知识覆盖面全面。整体难度不大。</span></p><p class="MsoNormal"><strong><span>第一大题</span></strong><span>是填空题，涉及的知识点包括<span>z</span>变换的性质、冲激信号的性质、系统特性判断、逆<span>z</span>变换的计算、卷积的计算、拉普拉斯变换、傅里叶变换计算以及信号流图与系统函数转换的内容。</span></p><p class="MsoNormal"><strong><span>第二题</span></strong><span>基础题考察的是奈奎斯特采样、<span>Z</span>变换计算、信号运算、拉普拉斯变换、傅里叶变换、<span>S</span>域系统分析以及系统框图与系统函数转换的相关内容，要注意<span>S</span>域系统稳定即收敛域包含轴。</span></p><p class="MsoNormal"><strong><span>第三题</span></strong><span>考察简单的信号卷积运算以及系统框图，题目形式简单，根据系统框图列写系统函数即可。</span></p><p class="MsoNormal"><strong><span>第四题</span></strong><span>以频谱压缩系统为背景考察信号的傅里叶变换，要明白频谱压缩的过程和原理，找对对应的冲激函数位置。</span></p><p class="MsoNormal"><strong><span>第五题</span></strong><span>是一道基础的电路题目，根据电路列写系统函数即可，注意不要粗心带错公式。</span></p><p class="MsoNormal"><strong><span>第六题</span></strong><span>是离散系统的<span>Z</span>域分析，要注意根据零极点图设系统函数时不要忘记常数。</span></p><p><strong><span>第七题</span></strong><span>是一道简单的拉普拉斯变换计算题目，我们需要注意其收敛域的不确定性，从而引发对收敛域的讨论。</span></p><p class="imgbox"><span class="image-box"><img data-original="http://image.uc.cn/s/wemedia/s/upload/2022/30b24c7ada7b06a3d72f395d9a6f52b0.png" data-src="http://image.uc.cn/o/wemedia/s/upload/2022/30b24c7ada7b06a3d72f395d9a6f52b0.png;,4,png;3,700x.png" src="//image.uc.cn/s/uae/g/1v/images/image-lazyload.png" uploaded="1" data-infoed="1" data-width="1280" data-height="1810" data-format="png" data-size="824607000" data-index="1" class="image-default-bg b-lazy" heavypress="http://image.uc.cn/o/wemedia/s/upload/2022/30b24c7ada7b06a3d72f395d9a6f52b0.png;,4,png;3,700x.png" style="width: 700px !important; height: 989.844px !important;"><span class="share-import-title"></span></span></p><p class="imgbox"><span class="image-box"><img data-original="http://image.uc.cn/s/wemedia/s/upload/2022/ddbd66d931f27fe6ae606db38763d09e.jpg" data-src="http://image.uc.cn/o/wemedia/s/upload/2022/ddbd66d931f27fe6ae606db38763d09e.jpg;,4,jpegx;3,700x.jpg" src="//image.uc.cn/s/uae/g/1v/images/image-lazyload.png" uploaded="1" data-infoed="1" data-width="1080" data-height="413" data-format="jpeg" data-size="73754000" data-index="2" class="image-default-bg b-lazy" heavypress="http://image.uc.cn/o/wemedia/s/upload/2022/ddbd66d931f27fe6ae606db38763d09e.jpg;,4,jpegx;3,700x.jpg" style="width: 700px !important; height: 267.685px !important;"><span class="share-import-title"></span></span></p><p class="imgbox"><span class="image-box"><img data-original="http://image.uc.cn/s/wemedia/s/upload/2022/1e8d9a234df48bf8a7c258098ddcef9a.png" data-src="http://image.uc.cn/o/wemedia/s/upload/2022/1e8d9a234df48bf8a7c258098ddcef9a.png;,4,png;3,700x.png" src="//image.uc.cn/s/uae/g/1v/images/image-lazyload.png" uploaded="1" data-infoed="1" data-width="1280" data-height="1810" data-format="png" data-size="791327000" data-index="3" class="image-default-bg b-lazy" heavypress="http://image.uc.cn/o/wemedia/s/upload/2022/1e8d9a234df48bf8a7c258098ddcef9a.png;,4,png;3,700x.png" style="width: 700px !important; 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height: 989.844px !important;"><span class="share-import-title"></span></span></p><p><strong><span>留个点赞和在看再走呀<span>~</span></span></strong></p><p><strong><span>你们是我更新的唯一动力！</span></strong></p><p><strong><span>请做完再看解析哦</span></strong></p></div><br>最后别忘了到沪学网下载免费课程！
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