scholarly journals Steady-State Performance Analysis of Tracking Filter Using LFM Waveforms and Range-Rate Measurement

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Kenshi Saho
Keyword(s):  
Steady State ◽  
Performance Analysis ◽  
Tracking System ◽  
Prediction Errors ◽  
Tracking Accuracy ◽  
Performance Variation ◽  
Range Rate ◽  
Tracking Filter ◽  
Accuracy Degree ◽  
Steady State Performance

The steady-state performance of a moving-object tracking filter is theoretically analyzed, assuming the simultaneous measurement of the range and range-rate (RRM system), and the use of linear frequency modulated (LFM) waveforms (RRM-LFM filter). An efficient analytical steady-state performance index, called an RMS index, is derived for the RRM-LFM filter to clarify the steady-state range prediction errors, theoretically. Using the derived RMS index, the optimal performance of the RRM-LFM filter is analyzed. The performance variation due to the use of LFM waveforms is clarified for the RRM tracking system. The theoretical performance analysis verifies that the measured range-rate significantly improves the tracking accuracy, compared to the conventional range-only measuring LFM tracking filter. Furthermore, the quantitative relationships among the measurement accuracy, degree of target maneuvering, and steady-state range prediction errors are clarified to validate the effectiveness of the RRM-LFM filter.

scholarly journals Line-Start Permanent-Magnet Motor Single-Phase Steady-State Performance Analysis

2004 ◽  
Vol 40 (2) ◽  
pp. 516-525 ◽  
Author(s):  
T.J.E. Miller ◽  
M. Popescu ◽  
C. Cossar ◽  
M. McGilp ◽  
G. Strappazzon ◽  
...  
Keyword(s):  
Steady State ◽  
Performance Analysis ◽  
Permanent Magnet ◽  
Single Phase ◽  
Permanent Magnet Motor ◽  
Steady State Performance

Analysis of a 115MW, 3-Shaft, Helium Brayton Cycle Using Nuclear Heat Source

2001 ◽  
Author(s):  
K. Pradeep Kumar ◽  
A. Tourlidakis ◽  
P. Pilidis
Keyword(s):  
Steady State ◽  
Performance Analysis ◽  
Heat Source ◽  
Absolute Pressure ◽  
Brayton Cycle ◽  
Shaft Speed ◽  
Closed Cycle ◽  
Surge Margin ◽  
Nuclear Heat ◽  
Steady State Performance

This paper describes the steady state performance analysis of a 3-shaft closed cycle helium turbine using nuclear heat source. The analysis is carried out using a computer program, which is specifically made for this cycle. The computer model was tested for various Turbine Entry Temperatures (TET) and absolute pressures. The analysis of the change was focused on the compressors, as these are relatively more critical than the rest of the equipments. The change in TET triggered changes in shaft speed, mass flow rate, power output, absolute pressure etc. Adjustable guide vanes were used to study the operation with constant surge margin. The closed cycle was tested for various absolute pressures and it was established that the efficiency will not be affected in using the inventory control for the load variation.

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