QAM
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abbr.
quadrature amplitude modulation 正交幅度调制，正交调幅；queued access method 排队存取法；
英英释义
QAM
QAM stands for quadrature amplitude modulation, the format by which digital cable channels are encoded and transmitted via cable television providers. QAM tuners can be linked to the cable equivalent of an ATSC tuner which is required to receive over-the-air (OTA) digital channels broadcast by local television stations; many new cable-ready digital televisions support both of these standards.
以上来源于:Wikipedia
权威例句
Variable rate QAM for mobile radioAn Orthogonally Multiplexed QAM System Using the Discrete Fourier Transform
Using Times-Four Carrier Recovery in M-QAM Digital Radio Receivers
Rayleigh fading compensation for QAM in land mobile radio communications
Effect of channel estimation error on M-QAM BER performance in Rayleigh fading
Design, analysis, and performance evaluation for BICM-ID with square QAM constellations in Rayleigh fading channels
Design, analysis, and performance evaluation for BICM-ID with square QAM constellations in Rayleigh fading channels
Spectrally Efficient Long-Haul WDM Transmission Using 224-Gb/s Polarization-Multiplexed 16-QAM
Spectrally Efficient Long-Haul Optical Networking Using 112-Gb/s Polarization-Multiplexed 16-QAM
Hardware-Efficient Coherent Digital Receiver Concept With Feedforward Carrier Recovery for $M$ -QAM Constellations
1. The design of the carrier recovery loops in an all-digitized QAM receiver is investigated and two cascaded digital carrier recovery loops are proposed.
本文着重研究全数字QAM接收机中载波恢复环路的设计，采用快慢两个数字环路来进行载波恢复。
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2. The audit report shall be approved by QAM, except for audit of the QA department, whose audit report will be approved by the Managing Director, prior to circulation.
审查报告应由质量保证经理（QAM）负责核准，但是，质量保证部门（QA）的审查报告，应由常务董事核准，经核准后，将这些审查报告发放。
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3. For differential space-time block code with differential encoding matrix constructed from QAM symbols, a differential detection algorithm which avoids channel power estimation is proposed.
针对采用QAM信息字符构造差分编码矩阵的差分空时块码，提出了一种避免信道能量估计的差分检测算法。
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4. QAM (Quadrature Amplitude Modulation) has been widely used in various digital communication systems due to its high modulation efficiency.
正交幅度调制（QAM）具有较高的调制效率，被广泛应用于各种数字通信系统中。
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5. It is possible to implement a single-chip high-speed QAM demodulator on account of the development of digital communication, microelectronics and integrated circuit (IC) design.
数字通信技术、集成电路设计技术及半导体制造技术的发展使得在单芯片上实现高速QAM解调器成为可能。
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6. Following is an analytical expression to calculate the BER of M-QAM under Rayleigh channel when channel estimation error exists.
提出了计算瑞利信道下存在信道估计误差时M-QAM的误比特率的解析表达式。
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7. In a software defined radio(SDR) communication system, a new synchronization algorithm based on SDR in QAM modulated system is presented to realize synchronization based on pure software.
在软件无线电数字通信系统中，为了基于纯软件来实现收发同步，提出了一种新的基于软件无线电的QAM调制信号的同步算法。
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8. The optimization algorithm of star-QAM modulation constellation is proposed.
提出了星型QAM调制星座图的优化方法。
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9. This paper presents a Nyquist filter to perform symbol synchronization and matched filtering in a QAM demodulator for digital television.
本文设计了一种用于完成QAM数字电视解调芯片中符号及匹配成形功能的奈奎斯特滤波器。
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10. This dissertation studies both the high-speed QAM demodulator algorithm and its VLSI architecture.
本文主要研究高速QAM解调器的算法及其VLSI结构优化与实现。
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11. A switched-capacitor (SO four quadrant analog multiplier (4-QAM) is presented in this paper.
本文给出一种新型四象限模拟乘法器（4-QAM）的实现电路。
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12. Having analyzed the feasibility of MIMO-QAM system, this paper proposes an algorithm for estimating carrier frequency offset.
本文在分析MIMO-QAM系统可行性的基础上，提出了一种频偏估计算法，并进行了仿真。
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13. Such audits will be co-coordinated by the QAM and will be performed in accordance with this procedure.
该附加审查由质量保证经理（QAM）负责协调，并应遵照本程序要求执行。
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14. QAM modulation is widely used in cable and wireless transmission.
QAM调制方式广泛应用于有线和无线传输领域。
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15. The implementation of high-speed QAM demodulator needs both the stable demodulation algorithm and the mapping from algorithm to VLSI architecture followed with the optimal chip design.
高速QAM解调器的实现不仅需要稳定的高性能解调算法，而且需要将解调算法映射到超大规模集成电路（VLSI）结构，并完成电路优化设计。
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16. A complex-valued minimum bit error rate(MBER) nonlinear equalizer is proposed for equalization of quadrature-amplitude modulation(QAM) in nonlinear channels.
本文提出一种复值的最低误码率非线性滤波器用于非线性信道中QAM信号的均衡。
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17. The tuner is for QAM demodulation and error-correcting decoding functions.
其中，QAM解调和解码功能由一体化高频头来实现。
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18. A low-complexity adaptive quadrature amplitude modulation(QAM) scheme was presented to increase throughput for multi-antenna communication system with covariance feedback.
基于多天线相关信道协方差反馈，提出一种低复杂度自适应正交幅度调制（QAM）机制以提高系统发送速率。
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19. Due to no channel estimation required for rayleigh fading channel, quotient coded QAM has lower receiver complexity.
商分编码QAM由于无需信道估计和均衡，因此降低了在瑞利衰落信道解调的复杂性。
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20. Based on QAM modulation and constant modulus algorithm(CMA), a novel blind equalization algorithm, the construction function(CF) algorithm is proposed.
基于QAM调制信号及常模算法（CMA），提出一种新的盲均衡算法—构造函数（CF）算法。
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21. Using just two inverters for glue logic , an 8-bit microcontroller and two 12-bit DACs enable 256-level QAM.
仅使用两个转换器形成胶连逻辑，一个8位微处理器和两个12位DAC实现256级QAM。
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22. This paper proposes an architecture of a blind adaptive equalizer for digitized QAM receiver.
提出了一种适用于数字QAM接收机的自适应盲均衡器实现方案。
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23. Quadrature Amplitude Modulation(QAM) is used to transfer signals by digital TV system based on DVB_C standard.
基于DVB_C标准的数字电视系统采用正交幅度调制（QAM）传送信号。
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24. A blind adaptive equalizer for digital QAM demodulator ASIC chip is designed.
设计了一种用于数字QAM解调芯片中的自适应盲均衡器。
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25. At the same time, M-QAM mapping can be used in OFDM for improving data transportation speed.
同时在OFDM调制时可以采用M-QAM映射方式，提高短波跳频系统的信息传输速率。
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26. A joint carrier-phase-tracking algorithm based on signal combining is proposed for carrier phase tracking of quadrature amplitude modulation(QAM) signals.
针对低信噪比下QAM信号的载波相位跟踪问题，提出一种基于信号合成的联合载波相位跟踪算法。
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27. The CAR with identification of the quality problems to be corrected shall be approved by the QAM or by the BPS Managing Director in the case of audit findings on the QA Department.
整改要求单上应说明待整改的质量问题，并应由质量保证经理（QAM）核准，如果审查出来的不合格问题，属于质量保证（QA）部门，则整改要求单，由英伦管架有限公司（BPS）的常务董事负责核准。
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28. The implementation of OFDM base-band processing system, characterized by 16-QAM (Quadrature Amplitude Modulation) and 64 sub-carriers, is paid more attention.
重点研究了基于64路子载波，采用16-QAM调制的OFDM基带处理系统的实现。
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29. The implementation of OFDM base-band processing system, characterized by 16-QAM (Quadrature Amplitude Modulation) and 64 sub-carriers, is paid more attention.
重点研究了基于64路子载波，采用16-QAM调制的OFDM基带处理系统的实现。
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30. QAM (quadrature amplitude modulation)
正交幅度调制
-- 来源 -- 英汉 - 翻译样例 - 行业
31. QAM [Quadrature Amplitude Modulation]
正交振幅调变
-- 来源 -- 英汉 - 翻译参考[网络]
32. The timing-error estimation based on waveform detection can be used in PSK/ QAM.
基于波形检测的定时误差估计算法适用于PSK/AM调制方式。
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QAM
