Searched refs:dT (Results 1 - 6 of 6) sorted by relevance

/frameworks/native/services/sensorservice/
H A DFusion.h66 void handleGyro(const vec3_t& w, float dT);
67 status_t handleAcc(const vec3_t& a, float dT);
92 void initFusion(const vec4_t& q0, float dT);
94 void predict(const vec3_t& w, float dT);
H A DFusion.cpp218 void Fusion::initFusion(const vec4_t& q, float dT) argument
234 const float dT2 = dT*dT;
235 const float dT3 = dT2*dT;
237 // variance of integrated output at 1/dT Hz (random drift)
238 const float q00 = mParam.gyroVar * dT + 0.33333f * mParam.gyroBiasVar * dT3;
241 const float q11 = mParam.gyroBiasVar * dT;
261 bool Fusion::checkInitComplete(int what, const vec3_t& d, float dT) { argument
270 mGyroRate = dT;
277 mGyroRate = dT;
313 handleGyro(const vec3_t& w, float dT) argument
320 handleAcc(const vec3_t& a, float dT) argument
430 predict(const vec3_t& w, float dT) argument
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H A DSensorFusion.cpp74 float dT; local
78 dT = (event.timestamp - mGyroTime) / 1000000000.0f;
80 const float freq = 1 / dT;
82 const float alpha = 1 / (1 + dT); // 1s time-constant
90 mFusions[i].handleGyro(gyro, dT);
103 float dT; local
106 dT = (event.timestamp - mAccTime) / 1000000000.0f;
111 mFusions[i].handleAcc(acc, dT);
/frameworks/base/core/java/android/hardware/
H A DLegacySensorManager.java412 float dT = (mT[j] - mT[j+1])*ns;
413 dT *= dT;
414 A += Z*dT;
415 B += T*(T*dT);
416 C += (T*dT);
417 D += Z*(T*dT);
418 E += dT;
/frameworks/base/libs/common_time/
H A Dclock_recovery.cpp93 const float ClockRecoveryLoop::dT = 1.0; member in class:android::ClockRecoveryLoop
98 const float ClockRecoveryLoop::bias_RC = (dT / (2 * 3.14159f * bias_Fc));
99 const float ClockRecoveryLoop::bias_Alpha = (dT / (bias_RC + dT));
255 delta_f = last_delta_f_ - dT*(CO - CObias);
260 dCO = Kc * (1.0f + dT/Ti) * delta_f - Kc * last_delta_f_;
H A Dclock_recovery.h60 static const float dT; member in class:android::ClockRecoveryLoop

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