1) QAM signal space
正交调幅信号空间
1.
This paper shows that one subgroup of the multiplicative group of units in the complex integer ring Z[(-1)~(1/2)], modulo ideal 〈pn(1+i)〉, can be used to obtain a QAM signal space of 4p2n-2 points with good geometrical properties, where p is an odd prime.
一些复整数构成的有限乘法群可被用来获得正交调幅信号空间以及设计纠错码。
2) signal processing in orthogonal space
正交空间信号处理
4) QAM
正交调幅
5) amplitude modulation signal
调幅信号
1.
A new lithology identification method based on axial amplitude modulation signal of drill string is proposed.
提出了一种利用钻柱轴向振动调幅信号实现岩性识别的方法。
6) AM signal
调幅信号
1.
This paper first studies the performance of the DPSD algorithm that is used to measure the AM signal, then presents the implementation and the performance of the algorithm.
本文提出了一种应用A/D转换器和计算机实现DPSD算法来测量调幅信号的方法。
2.
By using moving one period sine wave model, the precise demodulation of AM signal wave is achieved.
在此基础上讨论实现正弦载波的调幅信号的精确解调问题。
3.
The first analysis of the AM signal generator of the mathematical expression, then according to their mathematical expression, in matlab/simulink established under the corresponding data model, and then using DSP Builder module in the SignalCompiler this model into a tool of VHDL And finally in its QuartusII compile until downloaded to the FPGA, and the corresponding circuit.
文中首先分析了调幅信号发生器的数学表达式,然后根据其数学表达式,在matlab/simulink下建立相应的数学模型,然后利用DSP Builder模块库中的Signal Compiler工具将此模型转换为VHDL语言,最后在QuartusII中对其进行编译直至下载到FPGA中,实现相应的电路。
补充资料：调幅
载波振幅按调制信号振幅而变化的调制方式。载波经调幅后成为调幅波。调幅波的最大与最小振幅之差的一半与其和的一半之百分比称为“调幅度”。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条