Analog Communications for GATE and other Exams

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Coursera 模拟通信课程(专为 GATE 及其他考试设计) 课程大纲: **傅里叶变换:** 本课程首先介绍傅里叶变换及其收敛条件,然后深入讲解了单位冲激函数、指数函数(单边和双边)、符号函数、单位阶跃函数、正弦函数、矩形函数、Sinc 函数、采样函数、三角函数以及梯形信号的傅里叶变换。此外,还详细阐述了傅里叶变换的各项性质,包括线性、时域缩放、时移、频域移位、时域微分、时域积分、频域微分、共轭、对偶以及调制等性质。课程还探讨了时域和频域信号的面积、时域卷积、频域卷积以及帕塞瓦尔定理。最后,重点讲解了周期信号的傅里叶变换,并通过两套 GATE 考试真题与解析巩固学习。 **通信与系统:** 本部分内容涵盖了调幅(AM)的完整分析,包括其时域分析、单音 AM、功率计算、多音 AM 及其局限性。详细介绍了 AM 信号的产生方法(平方律调制器、开关调制器)和检测方法(相干解调器、平方律解调器),并辅以例题和三套 GATE 考试真题解析。 接着,课程深入讲解了双边带(DSB)信号,包括其产生方法(平衡调制器、环形调制器)和检测方法(相干解调器、Costas 环/接收机),并提供例题和两套 GATE 考试真题解析。 最后,课程介绍了单边带(SSB)信号及其时域表示,并讲解了其生成方法(频域和相域鉴别法)和检测方法(相干解调器)。 此外,还对调频(FM)进行了全面分析,包括单音 FM、窄带 FM (NBFM)、宽带 FM (WBFM) 和 Carson 规则带宽计算,并提供了两套例题和 GATE 考题解析。 最后,课程讲解了超外差接收机的工作原理,并提供了相关的例题。 **整体而言,本课程为备考 GATE 考试及相关领域的学生提供了全面而深入的模拟通信理论知识和实践应用指导。**

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课程详情

Fourier Transform============1. Introduction to Fourier Transforms & Dirichlet s conditions 2. Fourier Transform of Unit Impulse function and One sided Exponential. 3. Fourier Transform of Two sided Exponential. 4. Fourier Transform of Signum Function5. Fourier Transform of Unit Step function & Sinusoidal Functions. 6. Fourier Transform of Rectangular & Sinc & Fampling Functions.7. Fourier Transform of Triangular Function.8. Fourier Transform of Trapezoidal Signal.9. Linearity property of Fourier Transform 10. Time scaling property of Fourier Transform 11. Time shifting property of Fourier Transform 12. Frequency shifting property of Fourier Transform13. Differentiation in Time property of Fourier Transform14. Integration in Time domain Property of Fourier Transform15. Differentiation in Frequency domain Property of Fourier Transform16. Conjugation Property of Fourier Transform17. Duality Property of Fourier Transform 18. Modulation Property of Fourier Transform 19. Area Under time and Frequency Domain Signals. 20. Time Convolution Property of Fourier Transform 21. Frequency Convolution Property of Fourier Transform 22. Parseval's relation 23. Fourier Transform of Periodic Signal 24. GATE Previous Problems with Solutions Set - 125. GATE Previous Problems with Solutions Set - 2Communication & System==================1.Time Domain Analysis AM2.Single tone AM3.Power Calculations AM4.Multi tone AM5.limitations of AM6.Square law Modulator - AM Generation7.Switching Modulator - AM Generation8.Coherent Detector - AM Detection9.Square law detector-AM Detection10.Example problems on AM11.GATE problems on AM Set - 1 12.GATE problems on AM Set - 2 13.GATE problems on AM Set - 314.DSB introduction15.Balanced Modulator-DSB generation16.Ring Modulator - DSB Generation17.Coherent detector - DSB Detection18.Costas Loop/Receiver - DSB Detection19.DSB example problem20.GATE - Problems on DSB Set - 121.GATE - Problems on DSB Set - 222.SSB Introduction23.SSB Time domain representation24.SSB Generation-Frequency and Phase Descrimination Methods25.SSB Detection - Coherent Detector26.Single tone FM27.Narrow Band FM(NBFM)28.Wide Band FM(WBFM)29.Carson's rule for FM bandwidth30. Example Problems Set - 1 FM31. Example Problems Set - 2 FM 32.GATE FM Problems33.Super Heterodyne Receiver34.Super heterodyne Receiver Example Problems

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