A Framework of Multipath Mitigation With Joint Multipath-Doppler Diversity for RF Relative Measurement
نویسندگان
چکیده
منابع مشابه
Joint multipath-Doppler diversity in fast fading channels
We present a new framework for code-division multiple access (CDMA) communication over fast fading mobile wireless channels. The performance of the RAKE receiver, which is at the heart of existing CDMA systems, degrades substantially under fast fading encountered in many mobile scenarios. Due to the time-varying nature of the fast fading channel, we employ joint time-frequency processing, which...
متن کاملJoint multipath-Doppler diversity in mobile wireless communications
We introduce a new approach for achieving diversity in spread-spectrum communications over fast-fading multipath channels. The RAKE receiver used in existing systems suffers from significant performance degradation due to the rapid channel variations encountered under fast fading. We show that the Doppler spread induced by temporal channel variations in fact provides another means for diversity...
متن کاملThe Multipath Invariance Approach for Code Multipath Mitigation
The concept of multipath invariance asserts that there exist properties and/or regions of the code correlation function that do not change as a function of the multipath amplitude, delay, phase and phase rate. These Multipath Invariant (MPI) points exist at the plateaus of the correlation function. Previous experiments have demonstrated that despite low correlation power, it is possible to impl...
متن کاملSoftware-based Multipath Mitigation: Sampling for Multipath Invariance
Multipath potentially introduces a significant bias error into GPS code phase positioning solutions. That error is dependent on the amplitude, delay, phase, and phase rate of the multipath with respect to the line-of-sight. Many current mitigation techniques attempt to eliminate or reduce the impact of this error source. These techniques vary as widely in hardware and software complexity as the...
متن کاملMultipath Mitigation for Narrowband Receivers
Narrowband receivers are more robust to narrowband interference and to GPS signal faults, but they tend to have relatively poor multipath performance. Few current techniques are capable of mitigating multipath in these receivers. The Tracking Error Compensator (TrEC) however operates independent of the receiver’s precorrelation bandwidth (PCB) using the concept of Multipath Invariance (MPI). Th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Access
سال: 2020
ISSN: 2169-3536
DOI: 10.1109/access.2020.3023136