查看完整版本: DQPSK调制解调原理（免费）

DQPSK调制解调原理（免费）

【语言】：英文
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X 【页数】：136
~;ZKF*S)y 【何人（公司）所著】：Wentao Li5N[/ra)l
【文件格式】：pdf
0C{"]:`0qK:g1` 【文件原名】：A DSP-Based p/4-DQPSK Modems:[8h3C(C0}
【摘要或目录】：$} }(Pr `2{r;K
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1. Introduction 1
K6?9ZN*G,T$G`k 1.1 Background ……………………………………………………………… 1,u'?6o8CKT9l
1.2 DSP Solutions…….. ...……………………………………………… 3;GW \v8R-Ugn}7b"k
1.3 p/4-DQPSK Modems for U.S. and Japanese Digital Cellular and PersonalH/Kd Y'~!_i
Communications Systems Standards ……………………………………... 4M]#OaQ.C O
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1.4 The Objectives of this Thesis ……………………………………………… 5

D@%GvJx~)X 1.5 Thesis Organization ……………………………………………………… 5 H#ketn%zJ~^F
2. Mathematics and Basic Digital Communication Functions 6E;}7hI iU2z'D
2.1 Complex Envelope Representation ………………………………………. 6
m?*GI w\!X A!q 2.2 System Clocks …………………………………………………………… 7+bE3B| J~
2.3 Digital Complex Mixers, Digital Up Converters ………………………… 81E,H9\1CgG6M%[
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2.4 Digital Complex Sampling ………………………………………………. 12
&OO~4wk!r'NIbM 2.5 p/4-DQPSK Signal Description ………………………………………….. 156\QFn#C5F$C3v
2.6 Intersymbol Interference, Matched Filters and Eye Patterns ....…………… 183pd-eJ
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2.7 p/4-DQPSK Differential Encode and Decode ……..……………………… 23,AD8zd,X
2.8 Sampling Rate Conversion ……………...………………………………… 27Z}f `9K6\-Y#d m
2.8.1 Downsampling ………………………………………………………. 274_2R:~A+Gi.CD n
2.8.2 Upsampling …………………………………………………………..29
p"a$Q(W.ow,La u 3. Architecture and Model of a DSP-Based p/4-DQPSK Modem 330H{g.H6|:H
3.1 Introduction ……………………………………………………………….. 33Z$l'JjM#I;dd(m9R
3.2 Architecture and Model of a DSP-Based p/4-DQPSK Modem …………... 35
J-SUN9~d 3.2.1 Modulator …………………………………………………………… 37
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3.2.2 Demodulator ………………………………………………………… 39
([Q ll"j%m8\6R 3.3 System-level Considerations …………………………………………….… 44
V"SYM+D&h 4. Efficient FIR Filter Design 48
-b-k)J0Rn1{1|"?v 4.1 Introduction …………………………………………………………………48/k3R D(Qm
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4.2 Linear Phase FIR Filter …………………………………………………… 48j'G#g-e{
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4.3 Silicon Saving Techniques and Pipelining ………………………………… 50p'qK
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4.3.1 Canonic Signed Digit Multiplier ……………………………………. 50
Zk T6H o 4.3.2 Truncation ……………………………………………………………51
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o3B*E.{G&O,K 4.3.3 Pipelining ………………………………………………………….…51
\gXK*| k2I 4. 4 Implementing the Square Root Raised Cosine Filter …………………… 52\E]b:xe.]/K4[
4.4.1 Square Root Raised Cosine Filter Design in Matlab ……………… 52(C {s*O{'u MLk8J
4.4.2 Square Root Raised Cosine Filter Architecture in FLEX10K ……. 55Mjf0F5e7z
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2l$AF)\'X 4.5 Half-band Filters ……………………………………………………………59K+@fg/N
4.5.1 Half-Band Filter Characteristics ………………………………..…… 59
dR5Z.N4B pbp 4.5.2 Lagrange Half-Band Filter ……………………………………..…… 605y1k d {m!Dy$HU[ e{
4.6 Decimator and Interpolator with Polyphase Filters ……………………….. 65
Y^.E'U+uX4]k6M&\ 4.6.1 Aliasing in the Transition Band …………………………………….. 65
#?SUc(]3N-ZY9s 4.6.2 Decimator with Polyphase Filters …………………………………… 67
f5\9b,KE[_ 4.6.3 Interpolator with Polyphase Filters ………………………………… 69
/@uQLX 4.6.4 Power Consumption Estimation and Performance ………………… 71z?B){X
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4.7 Summary …………………………………………………………………. 72Yd9y H3]7b
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5. Timing Recovery 73
pB^%myn)ye\1S 5.1 Introduction …………………………………………………………………73VTs-@:J+\
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5.2 Squaring Timing Recovery ………………………………………………… 75
x5A%^z7h3J| 5.3 Timing Recovery in a DSP-based Modem ………………………………….76^
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5.3.1 Description of NDA Timing Parameter Estimation Algorithm …..…. 76
6Xr7{P%Y0\)^o.^ 5.3.2 Simulation of the NDA Timing Parameter Estimation Algorithm .… 79\]R3~ \
5.3.3 Quality of the NDA Timing Parameter Estimation Algorithm ……… 83
NN cV#P:Z/bzin 5.4 Implementation of the Algorithm in FLEX10K …………………………… 87@sB;`ke*G5R6T
5.5 Summary ……………………………………………………………………100
nhx'U`o1r P? 6. Performance Measurement and Results 101EG ]B1ue?
6.1 Introduction …………………………………………………………………101
aNe;Yte 6.2 Chip Size ……………………………………………………………………101
eN,l`!JAUpR 6.3 Modulator Performance ………………………………………………….… 102
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6.4 Demodulator Performance ………………………………………………….106
o']~,}5q$p$ti 7. Conclusions and Future Work 112
q-x(g9n qk;xe6{ 7.1 Conclusions …………………………………………………………………112
YKa2ED1g's0q5RW 7.2 Future Work ……………………………………………………………… 114
i*b)Y[__ Reference 115

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iP"`W.b5] # F' O2 f# S& l% e! J谢谢楼主!!!

很好很有用

看看能不能下啊，先谢谢了

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*mMd*IuK:i4[Ju 多多合作哦

不错呀! 对了，楼主还有新的文章么？

有助于提高英语知识!3A |Tr0x
再次谢谢楼主!!!
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可以学习学习啦！
lo \(nYz v 对了，楼主还有新的文章么？