The phrase "air target" is correct and usable in written English.
It is typically used in military or aviation contexts to refer to a target that is airborne or intended for aerial engagement.
Example: "The fighter jet locked onto the air target and prepared for interception."
Alternatives: "aerial target" or "airborne target".
As an air target intelligence officer in the Mediterranean and European theaters during World War II, and later having been to Kabul and the Afghan countryside, I want to note some critical differences in the bombing targets our air force faced then and those it faces now.
The conventional signal processing method for the air target detection and parameter estimation cannot be applied in the ground-based system.
In the air-based FSR system, the velocity of the air target is high [8], and the length of the baseline is far larger than the target size [9], furthermore the clutter background is relatively small [10].
Table 1 Example emitters of opportunity for PCL systems Emitter Frequency, (GHz) Wavelength, (m) Functionality as PCL FM Radio [4, 5] 0.1 3 Medium to long range air target detection and tracking.
Moreover, the velocity of the ground target is much lower than the air target, the Doppler frequency will not change enough to allow the Doppler filter extract the Doppler shift (the velocity of the target).
The free space model may better serve at L-band and higher operational frequencies, although even in this case, the model (14) is only applicable for air target detection.
The paper describes a fuzzy logic classifier (FLC) to achieve the recognition for air targets.
Then we design the FLC to synthesize the two characters and identify the type of air targets.
We first acquire the high range resolution profiles (HRRP) of three types of air targets from the measurements.
Ports using the index would be able to offer incentives to cleaner ships, helping them to reach local clean air targets, he said.
The decision vindicated the clean air strategy devised by the outgoing E.P.A. administrator, Carol Browner, and challenged her successor, Christie Whitman, to move forward with a program to achieve the clean air targets set by Ms. Browner.
