Patent ID: 6938472

Claim:
A method of calculating air-speed with a sensor mounted in a rotational field comprising the steps of: i) obtaining a total pressure measurement within the rotational field; ii) calculate P T ′(t); iii) extract steady state term P T 0 ′ and 1 st harmonic amplitude P T 1 ′; iv) calculate P S from P s = ( P T o . ) γ γ - 1 [ 1 + γ - 1 γ ⁢ 1 2 ⁢ gRT ⁢ ( V T 2 + V R 2 ) ] γ γ - 1 utilizing a previously calculated V T where V T initially 0; and v) recalculating V T with P S from said step iv); and vi) repeating said steps iv) and v).