| 1. | Three characteristics that discribe a sinusoidal signal are the frequency , amplitude , and initial angle
表示正弦量的三个要素为频率、幅值（大小）和初相角。 |
| 2. | The methods of calculating correctly of original phase angle of fundamental component using ft have also been presented in this paper
本文还对如何利用傅氏算法来求取正确的基波或某次谐波初相角方法进行了研究。 |
| 3. | The vibration of magnetism pole center in main and subsidiary generator could be deduced to the different order when the generator put into power system
主、副发电机磁极中心线与系统初相角前后不同，将使主、副发电机并入电网的顺序不同。 |
| 4. | With the fft data and the fourier transform simplified expression , the frequency , amplitude and the initial phase angle of inteharmonics are calculated
以fft幅频特性数据和傅立叶变换简化公式为依据，编程求解间谐波的频率、幅值和初相角。 |
| 5. | This paper aims at studying a measuring method of interharmonics to estimate their parameters ( frequency , amplitude , and initial phase angle ) with the short - time sampling to the signal
本论文的目标就是研究一种间谐波测量的方法，通过对间谐波源信号较短时间的采样，判断出间谐波的频率、幅值和初相角。 |
| 6. | The equation among peak factor , quality factor , switch initial angel is concluded . on the basis of the equation , peak factor curve has been programmed . the rms value , peak value and switch initial angel can be shown in the screen of computer
本文推导峰值系数与品质因数和合闸初相角的函数关系式，依此编制峰值系数曲线程序，利用对品质因数和合闸初相角的控制可使每个绕组都受到规定峰值的作用。 |
| 7. | Based on the single cycle detector , the finite cycle detector is proposed for the detection of phase - coded signals . the finite cycle detector has a good performance under unknown the spreading code sequence , initial phase , spreading code timing epoch
针对相位编码信号的检测，提出了基于单循环检测器的有限多循环检测器，可在没有编码序列、初相、编码序列初始时间等信息的情况下，取得理想的检测效果。 |
| 8. | The small inclusions - in aluminum alloy can be detected according to this rule . 2 . the initial phase angle of the highest spectral line mushrooms with the growth of volume percentage of inclusions while forward direction , but it goes down while negative direction . 3
正向检测(沿轧制方向)时，最高谱线的初相角随夹杂物体积百分数的增加而迅速增加；逆向检测时，最高谱线的初相角随夹杂物体积百分数的增加而迅速减小； 3 |
| 9. | Based on the amplitude and phase of two - order cyclic spectrum of phase - code signals , a novel cyclic spectrum estimation approach is proposed to estimate the carrier frequency , chip width , amplitude , initial phase , timing epoch of spreading code under no parameter information . this approach is computationally efficient , and is easy to be implemented , and it shows a good estimation accuracy over analysis
基于相位编码信号循环谱的幅度和相位特性，提出了二阶循环平稳参数估计方法，可庄没有任何参数信息情况下，实现载频、码片时宽、幅度、初相、编码序列初始时间等参数的估计，估计方法计算量少，易于实现，且有良好的估计精度。 |
| 10. | The sidelobes characters of the pn codes modulated by signals are discussed taken m - sequence and kasami sequence as examples in this dissertation . it can raise the mainlobe - sidelobes ratio when the initial phase is properly chosen . the mainlobe - sidelobes ratio can even be further improved when mismatched filters are adopted
本文第二章从国防重点型号装备研制项目“北斗一号”用户机的应用需求，以m序列和kasami码为例，研究了有符号调制的伪随机序列的旁瓣特性，指出通过选择合适的伪随机序列的调制初相，可以明显的改善主旁瓣比；失配接收可以进一步提高主旁瓣比。 |
