deadlock
发表于 2025-3-26 23:08:04
tie between language and culture. While linguists and ethnographers grapple with defining the relationship of language to culture, or of language and culture to identity, the Soviets knew that language is an integral and inalienable part of culture. The former Soviet Union provides an ideal case st
蜈蚣
发表于 2025-3-27 02:07:31
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很像弓]
发表于 2025-3-27 06:51:15
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enhance
发表于 2025-3-27 11:01:03
System Overview: The Broadband CDMA Downlink, reductions in implementation complexity, makes it the multiple access strategy of choice for the broadband downlink. It will become readily apparent that there is a tremendous amount of interdependency between the various parameters in the link design; it is the goal of this chapter not only to des
Communal
发表于 2025-3-27 14:34:49
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Irrepressible
发表于 2025-3-27 18:12:59
Broadband RF Transmission and Modulation,ted to the RF pass-band for transmission. Specifically, the 4 parallel outputs of the modulator integrated circuit must be multiplexed back into a 256 MHz serial stream, passed through a state-of-the-art 10 bit ECL D/A converter, and then modulated to a carrier frequency by a 1024 MHz carrier. In th
squander
发表于 2025-3-28 01:08:32
The Receiver: Analog RF Front-End, is the greatest barrier that needs to be surmounted if the vision of a broadband wireless terminal is to be achieved. As an architectural issue, one major design goal is that the analog hardware be simplified as much as possible; since the carrier frequencies are above 1 GHz, the complexity and dif
CAJ
发表于 2025-3-28 04:57:13
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艰苦地移动
发表于 2025-3-28 10:13:48
The Receiver: Baseband Spread-Spectrum Digital Signal Processor,of the receiver’s analog front-end, two 4-bit, 128 MHz interleaved streams are emitted: the only processing that has been done so far is to bring the signal to baseband, and A/D converting it into a digital stream. Even beyond sheer data recovery, the issues of timing recovery and carrier frequency
Bravado
发表于 2025-3-28 11:37:26
The Matched-Filter Correlator,ed filter correlator. In a more general light, next-generation digital communications systems will increasingly rely on digital signal processing, given the rapid advances in silicon CMOS scaling and computational capability possible in a single custom integrated circuit. Likewise, it is also possib