p***y
发帖数: 18037 | 1 我以前都不知道有wideband呢。我也想知道到底有多好。 |
|
p*5
发帖数: 16204 | 2 No.
My only option is Time Warner now. I can get Wideband for $99 but I think it
over charges. |
|
H***g
发帖数: 1953 | 3 wideband 50/5 $99.95/m is the way to go! |
|
|
l********l
发帖数: 9452 | 5 twc caps all queens basic plan from 6pm - 2am, unless u upgrade to wideband.
such a shame... |
|
l********l
发帖数: 9452 | 6 我用tw wideband， 50M，下american片很快的说 |
|
|
|
l********l
发帖数: 9452 | 9
把modem的log弄出来看看？
我用wideband快2年了，一直挺好的 |
|
F********y
发帖数: 400 | 10 纽约地区的wideband的(至少是最近1年开始的)用户无法access到modem的设置页面的..
..所以你要我也无法调给你.
但是至少这个问题只发生在部分大陆网站,而且supervisor也确认了他刚得到消息东部
地区目前的确在网络出口上有些问题呀.. |
|
|
l********l
发帖数: 9452 | 12 我这网易，qq啥都好啊。刚看了最新的我是歌手。。。。。。
看来wideband还是值得的。。。 |
|
b******t
发帖数: 39 | 13 是不是zzd开了家猎头公司，好象老见他招人，
就不知道能不能给我们开个后门，
Work
develop
include
software
protocols, QoS
with
Embedded
develop the
Responsibilities
testing and
closely with
design
level
BLC-G1
hardware
Responsibilities
a GUI
hardware
development
BLC-G2
next
at our
Development or
networks is a
software is
Wireless
BLC-G3
software
Wideband
software
configuration
various
desire to
Experience with
must.
Object
Rational Rose
Digital Signal
Technologies- CDMA/
地址：北
关璐小姐
please visit
environment
embark |
|
l**n
发帖数: 7272 | 14 "苹果4和4S用外壳当天线，这个天线的尺寸已经很大了"
你说的尺寸大是指aperture大，还是physical size大？
“能设计成宽带天线的外壳做成了一个窄带电线”
宽带/窄带是bandwidth吗？
iphone4s外壳是玻璃的。5背面是铝的。其他厂家的外壳大部分是塑料的。你的意思是
说Nokia把外壳做成一个wideband天线？ |
|
a***y
发帖数: 19743 | 15 通话质量的话
iPhone 5 TMobile之间是wideband audio
ATT还不支持。 |
|
l********l
发帖数: 9452 | 16
我以前用过thundernews，8.99一个月的。很快的啊。当时是10m，记得一个线程就吃饱
了。现在是nyc twc wideband 50M的plan + NewsDemon ($5 per month),很爽。 |
|
l********l
发帖数: 9452 | 17
10 -》 20m是promotional period，每年twc都搞这个。dslreport上面n多人都天天盼
。好处是deal完了你可以打电话去argue，很多人拿到79.99的wideband plan（50m/5m
）。 |
|
|
|
k***s
发帖数: 370 | 20 H SERIES AUDIOVISUAL AND MULTIMEDIA SYSTEMS
Characteristics of transmission channels used for other than telephone purposes
H.13 (11/88) Impulsive noise measuring equipment for telephone-type circuits
This Recommendation is published under alias number O.71
H.16 (10/84) Characteristics of an impulsive-noise measuring instrument for wideband data transmission
This Recommendation is also included but not published in O series under alias number O.72
Red Book Fascicle III.4
Characteris |
|
p**y
发帖数: 10 | 21 CDMA: Code Division Multiple Access
W-CDMA : Wideband CDMA
GSM : Global Service(System?) for Mobile
Wireless is hot now, but it is exaggrated by those brokers, I think.
Qualcomm's Stock is growing too fast, maybe its experience will be
just like Internet stocks.
I am too lazy to write too much about these technical terms.
You can check www.cdg.org or some telecomm companies website if you want.
在 johnn (johnn) 的大作中提到: 】 |
|
p**y
发帖数: 10 | 22 Equalization IS a big deal in CDMA systems because
CDMA signal is inheritantly wideband and have to
deal with multipath problem.
For gaochao's problem, it depends on your problem.
If you are working on some practical system like
IS-95 system, in which long-code is used, no
equalization, rake receiver is used to perform a
maximum ratio combining to combat multipath.
In academia/research CDMA literature, people did
lots of things about short-code CDMA systems. In
this case, a lot of thing become m |
|
c******h
发帖数: 454 | 23 my 2 cents
1. CG has low input impedance 1/gm, so it can be used as input stage in high
speed design for the impedance match 75 ohm. Unlike inductance RF design,
it offers wideband.
2. For output stage, follower is often used because we want low impedance to
drive high impedance for a voltage source. C-G is opposite.
3. For noise consideration, C-G and C-S have same noise performance.
C-S is Vsignal/Vnoise (both refered to gate)
C-G i signal = V signal / Rin (Rin = 1/gm)
i noise = v noise gm, so |
|
C*******g
发帖数: 82 | 24 for RF applications Rin is not a problem since people can use matching
network or transformers to tune the input impedances so that optimal power
gain can be achieved. Besides sometimes people use the 1/gm property of CG
stage to form a wideband input match to 50Ω.
In low frequency designs when people just connect the input of the second
stage to the output of the first stage it is a problem if the input
impedance of the following stage is too low. |
|
c******h
发帖数: 454 | 25 High Speed (> a few GHz) Analog IC design ya.
Different from RF, it is Wideband high speed which means it has bandwidth
over a wide frequency from KHz to GHz.
I post job a few times here and did not find a qualified candidate. |
|
r*****e
发帖数: 620 | 26 请教一下达人们，如果要开始做ultra wideband pulse radio的东东，
除了一般RF的设备比如高速的scope，spectrum analyzer, network analyzer
还需要什么别的必不可少或者比较贵重的玩意么？ |
|
h******v
发帖数: 30 | 27 The Differential Input Impedance of OPA656 (Wideband, Unity-Gain Stable, FET
-Input Operational Amplifier) is given as
10^12 Ohm || 0.7 pF. Does 10^12 Ohm mean the DC Input Impedance? How to calc
ulate the differential input impedance for
AC signal, say f=10MHz? Is the following correct?
Zin=1/(2*3.14*f*C)=1/(2*3.14*10^7*0.7*10^(-12))=20kOhm
I want to monitor a 0.1V/10MHz signal which has source impedance as high as
100MOhm by oscilloscope. Is there any chance?
Reference article:
"High- |
|
z***o
发帖数: 1254 | 28 Yes, for wideband oscilloscope. But for low freq oscilloscope, there is
operation mode for non-50ohm terminal. |
|
n******g
发帖数: 662 | 29 What is the GBW of the OPA? Rf and Cf cause a noise gain pole at around 1MHz.
Use a wideband OPA or re design Rf and Cf.
Probably you also should consider the parasitic capacitance and the
impedance of the current source. They also affect the stability of your
circuit. |
|
g**s
发帖数: 79 | 30 1.0－2.0GHz 的 wideband antenna |
|
s*******e
发帖数: 13 | 31 Here is the job description.
Will be part of analog design team for storage product. Design state-of-the-
art deep sub-micron CMOS analog front end for our high performance storage
products.
Masters degree plus 2~3 years of industry experience or PhD in the field of
analog IC design Experience in transistor-level design of one or more of the
following areas are required: ADC, DAC, Analog filter, VGA, wideband
amplifier, High performance voltage regulator, or PLL.
Strong understanding of analog c... 阅读全帖 |
|
s********n
发帖数: 166 | 32 有兴趣的站内信。
Fundamentals and PHY
• Advanced modulation schemes
• Antennas
• Beamforming
• Channel capacity estimation
• Channel equalisation
• Channel modelling
• Channel simulation
• Cognitive and green radio
• Cooperative communications
• Interference mitigation
• Multi-antenna signal processing
• PHY aspects of WLAN, WPAN, and WBAN
• PHY performance evaluation
• Physical layer network coding
• Physical laye... 阅读全帖 |
|
s********n
发帖数: 166 | 33 会议论文审稿。有兴趣请站内投条。
Interference characterization
Cognitive radio, ultra-wideband
Multihop and cooperative communications
Modulation, coding, diversity
Equalization, synchronization, channel estimation
Space-time coding, MIMO, adaptive antennas
OFDM, CDMA, spread spectrum
Channel modeling and characterization
Interference cancellation and multiuser detection
Iterative techniques
Information-theoretic aspects of wireless communications
Signal processin... 阅读全帖 |
|
c*****g
发帖数: 228 | 34 家里攒得太多，轻装一点吧。都比较新。$3一本，运费另算，多了可以议价，湾区自提
也可以
英文版
Probability and Random Processes with applications to Signal Processing -
Henry Stark - John Woods - 这一本有mark因为是上课用的
Digital Image Processing - 2nd Edition - Rafael C. Gonzalez
Adaptive Filter Theory - 4th Edition - Simon Haykin
A First Course in Wavelets with Fourier Analysis - Albert Boggess
Communication Systems Engineering - 2nd Edition - John G Proakis
Feedback Control of Dynamic Systems - 4th Edition - Gene Franklin
Digital Signal Processing ... 阅读全帖 |
|
l***y
发帖数: 1166 | 35 Components
组成部分
This theory is a logical extension of the rotating magnetic field model.
According to the Swami Vivekananda,
这个理论是旋转磁场模型的一个合理延伸。根据斯瓦米·维韦卡南达：
"the Vedantic Prana and Akasha and the Kalpas, which according to [Tesla was
] the only theories modern science can entertain [... he] thinks he can
demonstrate that mathematically that force and matter are reducible to
potential energy" (Grotz, 1997)
“根据（特斯拉说的），吠檀多的能量、阿卡萨和劫，只有现代科学的理论才能容纳（
……他），认为他可以用数学来论证，力和物质可约简成势能” (Grotz, 1997)
Tesla ele... 阅读全帖 |
|
o******o
发帖数: 1205 | 36 V1不好用，就是广告打得凶，唯一的区别就是可以提醒在哪个方向，但是反映慢，经常
误报。我是从PASSPORT 8500 X50换到V1的， 个人还是喜欢PASSPORT，反映够快，做工
也很好， 便宜100块，而且很多功能都可以手动关闭，比如真的没啥用的X BAND和
laser。 当时装AEM的WIDEBAND O2，表是在自动调光的，V1一直死认是laser，手动有
关不掉，所以要用RD就要关掉表，要不就用表关RD， 麻烦。
最近发现反映也慢，以前同样位置的速度显示牌，现在都到跟前了才开始叫。 |
|
y*******n
发帖数: 10103 | 37 可以看看有没有auto tune的产品，基本上是一个wideband o2 sensor在加一个ECU盒子。 |
|
r****t
发帖数: 10904 | 38 http://support.gizmo5.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=61
What Codecs does Gizmo5 use?
Solution Gizmo5 uses the following codecs:
GSM -- fixed bit rate, not loss tolerant, narrow band (8khz sampling rate).
iSAC -- variable bit rate, loss tolerant, narrow and wideband (8 to 16khz).
Varies based on Bandwidth, packet loss, delay
iLBC -- variable bit rate, loss tolerant, narrow
PCMA -- fixed bit rate (8kHz sampling rate)
PCMU -- fixed bit rate (8kHz sampling rate, high |
|
