产品介绍WJ技术出版物
Techinical Papers on Advanced Signal Processing for Broadband Wireless Communications:
To view the documents, please click on the links below.- Indoor Propagation Issues for Wireless LANs (As Published in RF Design September 2002 Issue)
- An Adaptive Algorithm for Antenna Array Low-Rank Processing in Cellular TDMA Base Stations
- Fast Adaptive Super-Exponential Multistage Beamforming for Cellular Base-Station Transceivers with Antenna Arrays
- Blind Adaptive Detection of DS/CDMA Signals on Time-Varying Multipath Channels with Antenna Arrays Using High-Order Statistics
- Wavelet-Based Separating Kernels for Array Processing of Cellular DS/CDMA Signals in Fast Fading
- Complex Scaled Tangent Rotations (CSTAR) for Fast Space–Time Adaptive Equalization of Wireless TDMA
- Optimally Regularized Channel Tracking Techniques for Sequence Estimation Based on Cross-Validated Subspace Signal Processing
- On MMSE Real-Time Antenna Array Processing Using Fourth-Order Statistics in the U.S. Cellular TDMA System
- On the Necessity of High Front-ends in Broadband Performance RF Wireless Access Employing Multicarrier Modulations (OFDM)
- Multipoint Multichannel Distribution Service at 155 Mbit/sec in 4.6 MHz: an Experimental Prototype Based on Wavefield Modeling
- Space-Time Open Architectures for Broadband Wireless Data Communications: Above the Log2 (l+SNR) Bit/See/Hz Barrier
- On Robust Suppression of Third-Order Intermodulation Terms in Small-Signal Bipolar Amplifiers
- Near-Carrier Oscillator Spectrum due to Flicker and White Noise
- Image-Reject and Single-Sideband Mixers
- Optimization of Tunable Oscillators with AM to FM Conversion for Near-Carrier Phase Noise
WJ Classic Technical Paper
Watkins-Johnson Company published WJ Tech-Notes on a variety of topics relevant to microwave communications for almost 20 years, starting in the mid-1970's. While some of these notes have become seriously out of date, many retain their relevance, since the fundamentals of physics and electrical engineering haven't changed. We have converted those Tech-Notes which are still of interest into electronic form and provide them here as a service to the wireless communications community. They are categorized by volume (vol. 1-18).To view these informational documents, please click on the links below.
Volume 1
- Developing the Electron Bombarded Semiconductor-an-On-Target Amplifier
- Developments in FML and Miniature Millimeter LNTWA Devices
- The Laminar Flow Gun CRT - New Concepts for the Eletron Beam
- The Coplanar Mixer
- YIG-tuned bulk GaAs Oscillators
- Voltage Controlled
- X-Ray Flux from Transmission-Target Tubes
- Airborne Rotary DF Antenna Systems
- Microwave Frequency Synthesizers - Accuracy and Purity
- High Reliability Intercept Receivers in EW Environments
- Ka-band YIG-tuned GaAs Oscillators
- A Modern Receiving System Approach to EMI/EMC/TEMPEST Measurements
- Electron Bombarded Semiconductors
- Linear VCO's Linearize Microwave Sources
- EW Acquisition Systems...Probability of Intecept and Intercept Time
- Gain of Directional Antennas
- EMC/TEMPEST Detection Systems...Test & Measurement Instrumentation
- Signal Recognition in a Complex Radar Environment
- Advances in Microwave Receiver Testing
- Design of Power Converters for Space TWTA's
- Pulsed X-Ray Tubes
- YIG-Tuned Integrated Devices
- Cavity-Controlled Oscillators
- Mixers as Phase Detectors
- HF Receiver Design
- Transportation Lag in Phase-Locked Loops
- Hyberabrupt Varactor-Tuned Oscillators
- Solid-State Limiting Amplifiers
- Miniature X-band Amplifiers and Down Converters
- Cascade Amplifiers
- Advances in CRT Technology Part 1
- Advances in CRT Technology Part 2
- Antenna Polarization
- YIG-Tuned FET Oscillator Design 8-18 GHz
- Signals Typical to the HF Spectrum
- Hybridization of Competitive Receivers
- High Dynamic Range Receiver Parameters
- Digitally Controlled VHF/UHF Receiver Design
- Ultralow-Noise Source for Noise Analyzer Calibration
- FSK: Signals and Demodulation
- Specifiying High-rel Mixers and Amplifiers
- UHF/VHF Direction Finding
- Mixers: Part 1; Characteristics and Performance
- Mixers: Part 2; Theogy and Technology
- Antenna Pedestals for Microwave
- Digital Transmission of Analog Signals
- Local Oscillator Phase Noise and it's Effects on Receiver Performance
- Improving System and Environmental DF Accuracy
- DF System Calibration and Correction Techniques
- Digital Signal Processing for Multi-channel Receiving Systems
- Design of Automatic Receiver Test Systems
- 18 to 60 GHz Signal Generation from Existing Sources
- Time-Domain Receivers for Pulsed Signals - Part 1
- Time-Domain Receivers for Pulsed Signals - Part 2
- Frequency Memory Loops
- ELF/VLF Receiver Design
- Predicting Intermodulation Suppression in Double-Balanced Mixers
- Low-Power VHF/UHF Synthesizer Design
- Microwave Sampling for Ultra-Broadband Frequency Conversion
- Software Design of Microprocessor - Controlled Receivers Part 2
- Design Considerations for Automated RF Test Equipment
- Image-Reject and Single-Sideband Mixers
- Modulation Recognition for Automated Surveillance Systems
- Aircraft Detection and Identification Using Passive Electronics Support Measures
- System Control of VHF/UHF Receivers
- Parallel Testing of Magnetic Bubble Memories
- Developments in Receiving System Integration Techniques
- Time Tracking of High PRI Signals with Bit-Slice Microprocessors
- Dual Mixers
- Wideband YIG-tuned Osciallators
- Automated Noise-Parameter Measurements Using a Microwave Probe
- Rapid Broadband Signal Acquisition
- Cascaded Amplifiers
- Frequency Discriminators
- Design Consideration for Miniaturized Receivers
- Millimeter-Wave Block Converters
- Mixers in Microwave Systems: Part 1
- Mixers in Microwave Systems: Part 2
- Surface-Mount Component Technology
- Fiber Optics for Receivers
- Combine Filters for Microwave and Millimeter-Wave Frequencies Part 1
- Combine Filters for Microwave and Millimeter-Wave Frequencies Part 2
