1) frequency ramp
频率斜升
1.
The traditional second-order PLL has trouble tracking frequency ramp signals due to their inability to follow a variable phase source.
由于稳态相差的原因,传统的二阶锁相环无法跟踪频率斜升信号,这里提出一种采用2型环路滤波器的锁相环路,对频率斜升信号具有较好的锁定效果。
2.
Due to steady phase error,low-order PLL has a trouble in tracking frequency ramp signals,so that the receiver cannot lock carrier signals.
低阶锁相环跟踪频率斜升信号时产生的稳态相差致使环路失锁,接收机无法锁定载波信号。
2) ramp steepness
升速斜率
3) frequency upgrading
频率提升
4) Increase of frequency
频率升高
5) chirp constant
调频斜率
1.
The estimation of chirp constant of baseband LFM signals;
基带LFM信号的调频斜率估计
2.
A new approach based on fractional fourier transfor m to estimate the chirp constant of LFM is presented.
该方法通过计算LFM的FRFT ,然后用匹配滤波的方法确定LFM在时频域内正交投影位置 ,从而得到LFM的调频斜
6) Slope frequency discriminating
斜率鉴频
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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