You need to determine the stability of electric power circuits as parameters change due to aging or temperature changes. Frequency response analysis is an important tool in circuit design and verification. Various measurements such as power supply rejection ratio, compo...
The general conclusions are that improvements are necessary for periods further back than 1.5 Myr BP. About the stability of the frequencies, the fundamental periods (around 40, 23 and 10 Kyr) do not deteriorate with time over the last 5 Myr but their relative importance for each insolation ...
Absolute frequency measurement of an I-2 stabilized Nd : YAG optical frequency standard A frequency (in-)stability of 2.5×10τhas been measured in the optical domain against a hydrogen maser. The measured (in-)stability decreases to 1×... GD Rovera,F Ducos,JJ Zondy,... - 《Measurement...
The analysis results in sets of frequency conditions, which guarantee transient stability for the entire initial load angle range, between the unstable equilibria neighbouring the system''s operating point, in the case where all other state variables are initially in equilibrium. This property ...
This paper deals with the exponential stability analysis of decentralized, sampled-data, Linear Time Invariant (LTI) control systems with asynchronous sensors and actuators. We consider the case where each controller in the decentralized setting has its own sampling and actuation frequency, which ...
and Willems, J.C., Stability Analysis of Nonlinear Control Systems in the Frequency Domain, Messen Steuern Regeln, 1968, vol. 11, no. 3, pp. 114–116. Google Scholar 1969 Yakubovich, V.A., On a Class of Nonlinear Differential Equations for which the Questions of Stability in Large ...
The white noise is then interpreted in the frequency domain. Both random walk and specific signals are studied in the time domain and can be separated by digital filtering. Two different sets of experimental results are analyzed by this method, one derived from measurements on a quartz-crystal ...
In a previous paper, a simple frequency-domain stability criterion was proposed for networks near the stability limit subjected to a 3-phase fault with no loss of line. The criterion can be summarized as follows: if a system is stable, the phase angle of the Fourier transform of a network...
2. In the frequency domain we will use the WKB method of Will and Schutz [64], which was extended to higher orders in [65–67] and made even more accurate by the usage of the Pade approximants in [67,68]. The higher-order WKB formula [69]: ω2 = V0 + A2(K2) + A4(K2) ...
time-domain analysis; frequency-domain analysis Summary A number of methods have been proposed that utilize the time-domain transformations of frequency-dependent dynamic impedance functions to perform a time-history analysis. Though these methods have been available in literature for a number of years...