highji 2006-5-13 00:30
数字调制基础
安捷伦的关于数字调制的技术文档,很实用B8r
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【资料成文时间】：
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【语言】：英语H jV \ ~.yN
【页数】：48 qY0eVe4E R f
【何人（公司）所著】：Angilent
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【文件格式】：pdf
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【文件原名】： L ceQV2]2D!M*[E6yi
【摘要或目录】：^$r#HULm^@
1. Why Digital Modulation?
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1.1 Trading off simplicity and bandwidth
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1.2 Industry trends?~4E M ]U dF
2. Using I/Q Modulation (Amplitude and Phase Control)
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to Convey Information.`V.v2uH.h)q:@
2.1 Transmitting information
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2.2 Signal characteristics that can be modified1jy7R.U:Q,Z2Q {a(nC
2.3 Polar display—magnitude and phase represented
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together
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2.4 Signal changes or modifications in polar forme-P`$Z Cp*t
2.5 I/Q formatsv7` cJ&\
2.6 I and Q in a radio transmitterO-e$my2z"H q1@)d
2.7 I and Q in a radio receiver
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2.8 Why use I and Q?
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3. Digital Modulation Types and Relative Efficiencies
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3.1 Applications? @B^*U|5jn;D^
3.1.1 Bit rate and symbol rate3E[8Q g$@jB
3.1.2 Spectrum (bandwidth) requirements
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3.1.3 Symbol clock&PYq%w q
3.2 Phase Shift Keying (PSK)
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3.3 Frequency Shift Keying NPSnG*[
3.4 Minimum Shift Keying (MSK)
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3.5 Quadrature Amplitude Modulation (QAM)y9} nH%a i9z
3.6 Theoretical bandwidth efficiency limits
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3.7 Spectral efficiency examples in practical radiosq)V2U$G:q'cHq9O
3.8 I/Q offset modulation!v @fh-_Z
3.9 Differential modulation:b\b'Q{(N r$O:E
3.10 Constant amplitude modulation8V3_z)gKW
4. Filtering(WO8KM0f|W
4.1 Nyquist or raised cosine filter aJgjjIjP"t
4.2 Transmitter-receiver matched filters
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4.3 Gaussian filter A3i @X;a"]
4.4 Filter bandwidth parameter alpha1G!Y lu t HH
4.5 Filter bandwidth effects;P~0ynr!a5q
4.6 Chebyshev equiripple FIR (finite impulse response) filter+I]8Mz7X*}/F F j
4.7 Spectral efficiency versus power consumption
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5. Different Ways of Looking at a Digitally Modulated
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Signal Time and Frequency Domain View1l2H|w$X$I&f8`)bq
5.1 Power and frequency view2e
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5.2 Constellation diagramsCPg7c FP
5.3 Eye diagrams8A*|#L0|X"p%t
5.4 Trellis diagrams(Ek7}x8Gyg
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6. Sharing the Channel~C C)w!_:E
6.1 Multiplexing—frequency
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6.2 Multiplexing—time4i)nM r D&P!M
6.3 Multiplexing—code
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6.4 Multiplexing—geography
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6.5 Combining multiplexing modes
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6.6 Penetration versus efficiency
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7. How Digital Transmitters and Receivers Work4T x:k\ Qr3s4B|#B
7.1 A digital communications transmitter
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7.2 A digital communications receiver
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8. Measurements on Digital RF Communications SystemsE:@-I@D F8^s n
8.1 Power measurements8Si:q0F h C
8.1.1 Adjacent Channel Power*Om~%~k
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8.2 Frequency measurements6~ Q-J5J)V V S"w
8.2.1 Occupied bandwidth1GX'l)@/ae1s4X
8.3 Timing measurements \%F |2p y _3HK S3W
8.4 Modulation accuracy
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8.5 Understanding Error Vector Magnitude (EVM)_*Saq.m,ZQ!t _3_
8.6 Troubleshooting with error vector measurementsYX L{*F
8.7 Magnitude versus phase error0M`4V K6N\$V0M%J
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8.8 I/Q phase error versus time
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8.9 Error Vector Magnitude versus time
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8.10 Error spectrum (EVM versus frequency)5r,b"B a0p,q `
9. Summary1Jb/gu&t5W;s(w
10. Overview of Communications Systems
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11. Glossary of Terms
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Table of Contents (continued)V1| x2^1R#yqm+v
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以下为图书资料发贴选项：
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【原书作者】： )d3f
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【译者】：
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【ISBN 】：
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【页数 】：
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【开本 】 ：
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【出版社】 ：5yU|q5k6q
【出版日期】：
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【文件格式】：
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【封面附图】：
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【摘要或目录】：