OBPSR: A multi-signal receiver based on the orthogonal and bandpass sampling techniques

Lami, Ihsan Alshahib; Ai-Aboodi, M.

doi:10.1109/iccat.2013.6522029

Cited by 2 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it requires more computational operations to split the real and imaginary components of both signals, as well as requiring more resources, such as mixers in time domain, to multiply the complex correlator outputs [5]. To save valuable correlation resources, orthogonalising any two BPSK signals in a bandpass sampling receiver have been successfully implemented to track two signals simultaneously [6]. In this implementation, one of the received signals was passed through a Hilbert Transform (HT) and then combined with the other signal to construct an orthogonal signal.…”

Section: Figure 3 Dfdc Acquisition Methodsmentioning

confidence: 99%

“…As shown in Figure 5, this is achieved by making the received Galileo signal orthogonal with a 90-degrees phase-shifted copy of itself, using an HT to do the phase-shift. OGSR is possible only because the Galileo data and pilot signals are transmitted simultaneously, and therefore they have the same Doppler and phase shift as shown in equation (6). Consequently, the 90degrees shift can be applied to any one of the locally generated channel.…”

Section: Ogsr Implementationmentioning

confidence: 99%

See 1 more Smart Citation

OGSR A Low Complexity Galileo Software Receiver using Orthogonal Data and Pilot Channels

Albu-Rghaif¹,

Lami²,

Al-Aboodi³

2015

Third International Conference on Advances in Computing, Communication and Information Technology- CCIT 2015

View full text Add to dashboard Cite

To improve localisation accuracy and multipath rejection, the Galileo-OS signal offers a new modulation with efficient power distribution technique between the two data and pilot navigation components. To achieve the full benefits of this modulation, a robust acquisition and tracking methods must be deployed. For example, using two parallel correlation channels to acquire these data and pilot will gain 3dB over using a single channel acquisition correlating with either one of them. However, dual channel SW receivers cost more processing overheads. In this paper, the authors propose to orthogonalise the received data and pilot signals so to enable their acquisition in a single correlation channel bandpass sampling receiver. Our simulation results, using Simulink, prove that OGSR performance is maintained (preserving the 3dB gain) with less processing time while the implementation complexity is reduced by 50%.

show abstract

Section: Figure 3 Dfdc Acquisition Methodsmentioning

confidence: 99%

Section: Ogsr Implementationmentioning

confidence: 99%

OGSR A Low Complexity Galileo Software Receiver using Orthogonal Data and Pilot Channels

Albu-Rghaif¹,

Lami²,

Al-Aboodi³

2015

Third International Conference on Advances in Computing, Communication and Information Technology- CCIT 2015

View full text Add to dashboard Cite

show abstract

OCBPSR: Orthogonal Complex BandPass Sampling Receiver

Al-Aboodi

Lami

2014

2014 World Congress on Computer Applications and Information Systems (WCCAIS)

Self Cite

View full text Add to dashboard Cite

Abstract-Second-order/Complex BandPass Sampling Receivers (CBPSR) are attractive for acquiring multi-signals for SDR/CR applications. One of the issues caused by the implementation of such receivers is the signals IQ mismatch. This paper proposes a CBPSR implementation that eliminates this IQ mismatch by reformatting the received signals in an orthogonal analytic form (thus named OCBPSR). Our implementation will also reduce the required sampling frequency to below the Nyquist rate, and so reducing the processing time to recover the signals. This is achieved by folding the upper-side of the received signals to the same fold-frequency in the baseband domain without overlapping, by making the signals orthogonal. MATLAB simulation is used to evaluate the performance of our OCBPSR using various scenarios of harsh signal environment, including Doppler and multipath effects.

show abstract

OBPSR: A multi-signal receiver based on the orthogonal and bandpass sampling techniques

Cited by 2 publications

References 14 publications

OGSR A Low Complexity Galileo Software Receiver using Orthogonal Data and Pilot Channels

OGSR A Low Complexity Galileo Software Receiver using Orthogonal Data and Pilot Channels

OCBPSR: Orthogonal Complex BandPass Sampling Receiver

Contact Info

Product

Resources

About