The FSK modem technique can be widely used for transmitting data in tone channel .

FSK调制解调技术广泛应用于 话音 通路传输数据。

A MAC protocol termed Dual Busy Tone Multiple Access ( DBTMA ) is a random access mechanism with high channel utilization for WLAN .

双 忙音多址信道接入（BTMA）议是一种 信道利用率较高的无线局域网信道随机接入控制方案。

By analysis based on time-domain and frequency-domain the producing and formative mechanism of acoustic signal is approached and the tone channel is put forward .

基于电弧声信号的时域与频域特征分析，讨论了电弧声产生机理，提出了 电弧 声道概念。

An SVQ Shaping Method on the Discrete Multi Tone Channel

离散多 频 信道上的SVQ成形方法

The performance for the convolver operation and the preamble processing in the additive white Gaussian noise ( AWGN ) and tone interference channel are studied which shows that the presence of noise in reference signal of convolvers has a stronger effect than merely reinforcing the channel noise power .

文章探讨了白高斯噪声（AWGN）与 单音干扰 信道下卷积器与前置码处理的性能，研究表明在卷积器参考信号上的在噪声比之单纯增大信道噪声功率的影响要强得多。

Then we propose the mode of inserting pilot tone . We present an adaptive Wiener filter which is used to estimate the channel parameters by combining an adaptive algorithm with the Wiener filter .

分析了导 频插入方法和 信道估计算法，在维纳滤波的基础上结合自适应算法，得到自适应维纳滤波 信道估计算法。

Then the concept of tone channel and its equivalent electrical model were advanced .

在此基础上提出 电弧 声道的概念，并建立了 声道的等效电气模型以及 电弧 声的参数化模型。

Aiming at on-line monitoring of welding quality the time and frequency characteristics are analyzed of the arc sound signals in short circuit gas metal arc welding ( GMAW ) . The concept of tone channel and its equivalent electrical model are suggested .

以焊接质量在线监控为目的，针对短路过渡气体保护焊（GMAW）电弧声信号进行了时域和频域特征分析，提出 电弧 声道的概念，建立其参数化等效电气模型。

The technique of suppressing single tone jamming in fading channel is also investigated in this chapter .

在本章中还研究了一种在衰落 信道下抑制 单音干扰技术。