We consider transmitter precoding for interference suppression and diversity exploitation for multi-antenna CDMA. The receivers are constrained to matched filter detection without channel state information (CSI) or receiver-based multiuser detection. We first develop precoders for scenarios where perfect downlink channel information is available at the transmitter. We show that full transmit an...

This paper describes a 24GHz CMOS RF transceiver for car radar applications. The transceiver consists of 4-channel receiver array and 1-channel transmitter. The prototype is designed by standard RF CMOS 0.13-μm technology. The simulated receiver gain is 30dB and simulated tramsmitted output power is 15dBm at 24GHz.

Transmitter and receiver circuits operating at 11 GHz system clock rate are described. These circuits, fabricated in a 0.8 μm SiGe-HBT technology, are the key elements of a radar head using a new ultra wideband principle.

Despite extensive research effort in contact-free sensing using RF signals the last few years, there still exist significant barriers preventing their wide adoptions. One key issue is inability to sense multiple targets due intrinsic nature of relying on reflection for sensing: reflections from get mixed at receiver and it extremely difficult separate these each individual. This problem becomes...

We consider the design of the precoders for a multi-input multi-output (MIMO) communication system equipped with a decision feedback equalizer (DFE) receiver. For such design problems, perfect knowledge of the channel state information ( CSI) at both the transmitter and the receiver is usually required. However, in the environment of wireless communications, it is often difficult to provide suf...

This paper investigates the possibility to improve target detection capability in a DVB-T- based passive radar sensor by jointly exploiting multiple digital television channels broadcast by the same transmitter of opportunity. Based on the remarkable results obtained by such a multi-frequency approach using other signals of opportunity (i.e., FM radio broadcast transmissions), we propose approp...

Space-Time Coded Modulation Design in Slow Fading Akrum Elkhazin Doctorate of Philosophy in Applied Science Graduate Department of Electrical and Computer Engineering University of Toronto 2009 This dissertation examines multi-antenna transceiver design over flat-fading wireless channels. Bit Interleaved Coded Modulation (BICM) and MultiLevel Coded Modulation (MLCM) transmitter structures are c...

System aspects of an anti-intruder multistatic radar based on impulse radio ultrawideband (UWB) technology are addressed. The investigated system is composed of one transmitting node and at least three receiving nodes, positioned in the surveillance area with the aim of detecting and locating a human intruder (target) that moves inside the area. Such systems, referred to also as UWB radar senso...

Emerging requirements for several radar applications call for highly-specialised signal processing algorithms displaying good multi-user capability. The theoretical basis of the implicit sampling averaging algorithm implemented in the radar receiver and its use for time delay determination has been described by Szajnowski [3]. The CSR utilises chaotic or truly random continuous binary waveforms...