ground range

ground range

[′grau̇nd ‚rānj]
(navigation)
References in periodicals archive ?
The pilot will bring the power levers aft out of the flight range and into the ground range as the copilot raises the arresting hook and folds the wings.
In numerical experimentation, we conducted several tests to calculate the effective ground range between launch and target points using oblate Earth model.
Because the cross-track dimension in SAR image is determined by a time measurement associated with the slant range from the sensor to the target, SAR images present inherent geometrical distortions that due to the difference between the slant range and the ground range [11].
In fact, we want to know the ground range resolution ([[rho].sub.gr]) in many applications.
By converting the slant range scale of InSAR 3-D image into the ground range scale, the slant angle of the "slope" can then be calculated, and it is totally determined by the depression angle of InSAR, e.g., the incline angles of scenarios I, II, III are all approximately equal to 150 deg, corresponding to a 30deg InSAR depression angle; the incline angle of scenario IV is approximately equal to 120 deg, corresponding to a 60 deg InSAR depression angle.
2(b), respectively, where the corresponding ground range of the focused point targets is denoted on the top of the Fig.
The parameters for 30[degrees] night HAS under hi-illumination conditions in the Strike Eagle are to start from a base position of 6,800 ft AGL and 2.4 nm ground range from the target, with an open fire slant range of 6,300 ft, a cease-fire slant range of 5,000 ft, and desired open-fire airspeed of 450 KCAS.
It is a high-resolution (1.4 metres for ground range and along track, 10 metres in moving target indicator mode) J-band synthetic aperture radar for use on slow-flying drones operating below 16,400 ft.
All 260 passengers on the flight were killed but the estimates of deaths on the ground range from five to 10 people - despite debris spreading over a 10-block radius.
The subjects in No Middle Ground range from the white South Boston housewives of ROAR, who organized against busing in the mid-1970s, to Winona LaDuke, Native American and environmental activist.
As explained in the previous section, ground range distance, elevation angle and frequency are variables involved in the ionospheric propagation issue and they are strongly interconnected.