diff --git a/perception/multi_object_tracker/include/multi_object_tracker/tracker/object_model/object_model_base.hpp b/perception/multi_object_tracker/include/multi_object_tracker/tracker/object_model/object_model_base.hpp
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+++ b/perception/multi_object_tracker/include/multi_object_tracker/tracker/object_model/object_model_base.hpp
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+// Copyright 2024 TIER IV, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//
+// Author: v1.0 Taekjin Lee
+//
+
+#ifndef MULTI_OBJECT_TRACKER__TRACKER__MOTION_MODEL__MOTION_MODEL_BASE_HPP_
+#define MULTI_OBJECT_TRACKER__TRACKER__MOTION_MODEL__MOTION_MODEL_BASE_HPP_
+
+#include <cmath>
+
+namespace
+{
+  constexpr double const_g = 9.81; 
+  double deg2rad(const double deg)
+  {
+    return deg * M_PI / 180.0;
+  }
+}  // namespace
+
+namespace object_model
+{
+
+enum class ObjectModelType
+{
+    NORMAL_VEHICLE,
+    BIG_VEHICLE,
+    BICYCLE,
+    PEDESTRIAN,
+    STATIC,
+    UNKNOWN
+};
+struct ObjectSize
+{
+  double length; // [m]
+  double width; // [m]
+  double height; // [m]
+};
+struct ObjectSizeLimit
+{
+  double length_min; // [m]
+  double length_max; // [m]
+  double width_min; // [m]
+  double width_max; // [m]
+  double height_min; // [m]
+  double height_max; // [m]
+};
+struct MotionProcessNoise
+{
+  double acc_long; // [m/s^2]
+  double acc_lat; // [m/s^2]
+  double yaw_rate_min; // [rad/s]
+  double yaw_rate_max; // [rad/s]
+  double slip_rate_min; 
+  double slip_rate_max;
+
+};
+struct MotionProcessLimit
+{
+  double slip_angle_max;
+  double acc_long_max;
+  double acc_lat_max;
+  double vel_long_max;
+};
+struct StateCovariance
+{
+  double pos_x; // [m^2]
+  double pos_y; // [m^2]
+  double yaw; // [rad^2]
+  double yaw_rate; // [rad^2/s^2]
+  double acc_long; // [m^2/s^4]
+  double acc_lat; // [m^2/s^4]
+  double vel_long; // [m^2/s^2]
+  double vel_lat; // [m^2/s^2]
+};
+struct BicycleModelState
+{
+  double slip_angle; // [rad^2]
+  double slip_rate; // [rad^2/s^2]
+  double wheel_pos_ratio_front; // [-]
+  double wheel_pos_ratio_rear; // [-]
+  double wheel_pos_front_min; // [m]
+  double wheel_pos_rear_min; // [m]
+};
+
+class ObjectModel
+{
+public:
+  ObjectSize size;
+  ObjectSizeLimit size_limit;
+  MotionProcessNoise process_noise;
+  MotionProcessLimit process_limit;
+  StateCovariance initial_covariance;
+  StateCovariance state_covariance;
+  BicycleModelState bicycle_model_state;
+
+  ObjectModel(const ObjectModelType & type) 
+  {
+    switch (type)
+    {
+    case ObjectModelType::NORMAL_VEHICLE:
+      size.length = 3.0;
+      size.width = 2.0;
+      size.height = 1.8;
+      size_limit.length_min = 2.0;
+      size_limit.length_max = 5.0;
+      size_limit.width_min = 1.5;
+      size_limit.width_max = 3.0;
+      size_limit.height_min = 1.5;
+      size_limit.height_max = 2.0;
+      
+      process_noise.acc_long = const_g * 0.35;
+      process_noise.acc_lat = const_g * 0.15;
+      process_noise.yaw_rate_min = 1.5;
+      process_noise.yaw_rate_max = 15.0;
+      process_noise.slip_rate_min = 0.3;
+      process_noise.slip_rate_max = 10.0;
+
+      process_limit.slip_angle_max = 30;
+      process_limit.acc_long_max = 2.0;
+      process_limit.acc_lat_max = 2.0;
+      process_limit.vel_long_max = 30.0;
+
+      // initial covariance
+      initial_covariance.pos_x = 0.5;
+      initial_covariance.pos_y = 0.4;
+      initial_covariance.yaw = deg2rad(20.0);
+      initial_covariance.yaw_rate = deg2rad(10.0);
+      initial_covariance.acc_long = 1.0;
+      initial_covariance.acc_lat = 1.0;
+      initial_covariance.vel_long = 1.0;
+      initial_covariance.vel_lat = 1.0;
+
+      // noise model
+      state_covariance.pos_x = 0.5;
+      state_covariance.pos_y = 0.4;
+      state_covariance.yaw = 0.1;
+      state_covariance.yaw_rate = 0.1;
+      state_covariance.acc_long = 0.1;
+      state_covariance.acc_lat = 0.1;
+      state_covariance.vel_long = 0.1;
+      state_covariance.vel_lat = 0.1;
+      break;
+    }
+  }
+  virtual ~ObjectModel() = default;
+};
+
+
+
+ObjectModel normal_vehicle(ObjectModelType::NORMAL_VEHICLE);
+
+
+
+}  // namespace object_model
+
+#endif  // MULTI_OBJECT_TRACKER__TRACKER__MOTION_MODEL__MOTION_MODEL_BASE_HPP_
\ No newline at end of file