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1·Chirping amplitude and phase changes with the modulation frequency are present.

得出了啁啾幅度和啁啾相位与调制频率的关系。

2·The features of pseudo code PM-carrier FM combined signal include the pseudo code and the modulation frequency.

伪码调相-载波调频复合信号的识别特征包括伪码特征和频率调制特征。

3·Due to the lasing effect, the peak modulation frequency of extinction ratio and chirp occur at the relaxation oscillation frequency.

受激射效应影响，消光比及频率啁啾在弛豫振荡频率处达到极大值。

4·The support vector clustering(SVC)algorithm was introduced to detect linear modulation frequency(LFM) signal and estimate its parameter.

文中引入支持向量聚类（SVC）算法对多分量LFM信号进行检测和参数估计。

5·It is convenient to change the optical intensity of the sidebands by tuning the DC bias voltage while the microwave modulation frequency and power are fixed.

当微波调制频率及功率一定时，可方便地调节直流偏置电压来改变各阶光波的强度。

6·Chaotic signals at different wavelengths can be generated by adjusting the pump power, modulation frequency and tunable filter, and chaos synchronization is achieved.

通过调节泵浦功率、调制频率和可调谐滤波器，可以产生不同波长的混沌信号，并实现混沌的同步。

7·Quantum well laser diodes are of high modulation frequency response. They can be used as light sources and be directly modulated for high bit rate optical communications.

量子阱激光器具有良好的小信号调制频率响应，能作为高速光通信光源采用直接调制方式进行信号传输。

8·Infrared thermal sensors are used in a wide variety of application which require room temperature operation and uniform sensitivity over a wide modulation frequency range.

热型红外传感器应用广泛，它要求在室温条件下工作，在宽的调制频率范围内具有均匀的灵敏度。

9·Finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3k is to be adopted, as it is used in SPWM.

文中还提出了抑制谐波电流和脉动转矩的方法，如在SPWM生成中，采用较大的3的整数倍调制比。

10·Experimental data show that the intensity modulation depth increases with the bias current of LD. When the modulation frequency increases, the intensity modulation depth decreases.

实验数据表明，光强调制度随激光器偏置电流的增加而加深，随调制频率的升高而减小。