Table 2 Transmitter experimental cycle.

From: Controlled beat-wave Brillouin scattering in the ionosphere

Time (s)

Pump

Probe Δf (Hz)

0–1

On

−1

1–2

On

−2

2–3

On

−4

3–4

On

−6

4–5

On

−8

5–6

On

−10

6–7

On

−14

7–8

On

−18

8–9

On

−100

9–10

On

Off

10–20

Off

Off

  1. The pump is on 10 s and then off 10 s at a fixed frequency (cf. Table 1), and the probe is stepped down in frequency by a shift \(\Delta f\) relative to the pump frequency \({f}_{0}\) (cf. Table 1) during the first 9 seconds and is then off for the following 11 seconds.
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