Description

Analysis and manipulation of signals at bitstream/symbol stream level
Key facts
  • Import of various symbol stream/bit stream formats
  • Symbol-to-bit mapping and bit stream representation
  • Versatile bitstream analysis functions
  • Wide variety of bit manipulation functions
  • Integration of user-specific algorithms into the R&S®CA250 operation sequences
  • Programmable script control for performing automatic analysis sequences

Brief description In the field of technical analysis of modern communications signals, the ability to analyze the characteristics of demodulated signals with unknown codings is of major importance. In addition to various symbol stream/bitstream representations, R&S®CA250 provides a large number of powerful analysis algorithms and bitstream manipulation functions. By selectively using these tools, the user can obtain technical data from the unknown bit stream. This data provides information about the type and content of the analyzed signal. Ideally, it is possible to resolve all aspects of the unknown code, thereby allowing the user to program a specific decoder for the unknown signal (e.g. by using the R&S®GX400ID decoder development environment).
Features & Benefits
  • Versatile data import and symbol stream/bitstream representation
    • Import of various symbol stream/bitstream formats
    • Symbol-to-bit mapping and bitstream representation as 0/1 and -/X representation as well as graphical visualization
  • Versatile bitstream analysis functions
    • Structure analysis
    • Statistical methods
  • Advanced code analysis functions
    • Automatic recognition of channel codings (convolutional, Reed-Solomon codes, etc.)
    • Manual expert analysis tools
  • Wide variety of processing functions for channel-coded bitstreams
    • Standard manipulation such as deletion, inversion, multiplexing and demultiplexing
    • Complex bitstream processing methods such as descrambling and deinterleaving
    • Processing of channel codings (convolutional, Reed-Solomon and other codes)
  • Payload analysis and processing
    • Automatic detection of typical payload structures
    • Various alphabets
    • Digital voice codecs
    • Processing of compressed data
  • Automation, extensibility and versatility
    • Integration of user-specific algorithms into the R&S®CA250 operation sequences
    • Programmable script control for performing automatic analysis sequences
    • Various user-configurable and extensible functions
''