| 1. | A method of modulation spectrum extraction from radiatednoise 一种从辐射噪声中提取调制谱的方法 |
| 2. | Any subtle change of capacitance can be measured through the method of modulation on high - frequency harmonic oscillation return circuit 电容的微小变化可通过对高频谐振回路调制的方法进行测量。 |
| 3. | The thesis presents automatic recognizing methods of modulation types based on statistic model which can enhance processing speed . frequency measurement through phase to recognize modulation types is another main work in this paper 另外,采用基于统计模式的方法做了调制类型自动识别,提高了处理速度;本文还给出了相位测频法进行调制类型识别和检测。 |
| 4. | This thesis first studied the communication system with detailed theories so that to choose the appropriate method of modulation and demodulation . n / 4dqpsk is a kind of modulation method which is appropriate to transfer in the attenuated channel / 4dqpsk是一种比较适合在衰落信道中传输的调制方式,它不需要提取相干载波,因而不存在相位模糊、环路跳周等问题。 |
| 5. | It is demonstrated by simulation data . as for classifier , it presents the artificial neural network . based on three methods of modulation recognition and decision tree classifier and neural network classifier , experimentations have been carried through 在分类器设计方面,介绍了利用神经网络进行模式识别的原理,采用前述的三种特征提取方法,分别结合判决树分类器和神经网络分类器对信号进行分类,并且进行了试验论证。 |
| 6. | In this dissertation we make used some methods of modulation with electronics parameter and modularization ideas of unit of function circuit , to study the control and synchronization of hyperchaos in system combined electronics with optics ( for short sceo ) , and research its applications of secure communications experiment 本文利用电学参数调制法和单元功能电路模块化思想,研究了电光混合系统超混沌的控制与同步,并对其在保密通信中的应用进行了实验研究。 |