Sentence examples for the received echo from inspiring English sources
In Figure2, the received echo is noiseless.
Fig. 5 HRRP of the received echo, where τ d n = 5.45 μs. a Once repeater.
The high oversampling rate is used due to discrete-time demodulation of the received echo signals.
b Thrice repeater Fig. 6 HRRP of the received echo, where τ d n = 5.11 μs. a Once repeater.
The first mixing is realized between the received echo signal (S R (t)) and the LO signal (SLO1 t)).
In addition, the received echo after stretch processing near these time points could be regarded as the mixed target echo.
As a consequence, the amplitude of the received echoes has received little attention from robotic researchers.
At mesospheric heights (∼60 85 km), the received echoes are highly intermittent in space and time and also very weak.
By measuring the Doppler shift of the received echoes, we can monitor the upward/downward motion of the ionosphere.
We plot the transmitted pulse (one realization) in Figure 4(a) and the received echos in one collection in Figure 4(b) (averaged over 35 pulses).
In the tested approach a coded acoustic signal is emitted and then the received echoes are compressed into brief, high amplitude pulses making use of matched filters and correlation receivers.
