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A clock synchronization method used in ADSL systems based on Discrete Multitone(DMT) is presented.
文章提出了一种ADSL系统中基于离散多音调制解调结构的时钟同步方法。
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The error correcting and decoding, interleave and and DMT modulation and demodulation are analyzed in detail.
分析了信道编译码方法、 交织与解交织及DMT调制与解调等关键技术。
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The main works in the paper could be described as follow: Study the theory of ADSL and DMT, design and debug the high density 32 line ADSL board for co.
论文的主要工作：深入研究ADSL理论及其离散多音调制。设计、并实际开发了高集成度32路ADSL局端业务板。
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The technology that using DMT, EG and PEG as material, using sodium benzene sulfonate as auxiliary antistatic agent to prepare the antistatic mother substance was studied.
研究了以DMT, EG, PEG为原料，苯磺酸钠等为辅助抗静电剂制备抗静电母粒的工艺。
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The effects of concentration of N-VP and light sensitive agent DMT in the grafting solutions and irradiation time on the grafting yield in acid and basic mediums were investigated.
测定了接枝率与接枝液中N-VP单体浓度、光照时间、催化剂浓度等条件的关系。
1. 二甲基色胺（DMT，dimethyltryptamine）第一类精神药品，色胺类致幻剂，药性强。不仅存在于植物中，还以痕量见于人体中，由色胺-N-转甲基酶催化产生，但具体功能不明。结构上与神经递质血清素和其他色胺类致幻剂5-甲氧基二甲基色胺、蟾毒色胺、脱磷酸裸盖菇素类似。该品可口服（与单胺氧化酶抑制剂）、吹入、直肠、吸入、肌注、静注。